Zugzwang

Zugzwang (pronounced tsook-tsvahng)

(1) In chess, a situation in which a player is limited to moves that cost pieces or have a damaging positional effect.

(2) A situation in which, whatever is done, makes things worse (applied variously to sport, politics, battlefield engagements etc).

(3) A situation in which one is forced to act when one would prefer to remain passive and thus a synonym of the German compound noun Zugpflicht (the rule that a player cannot forgo a move).

(4) In game theory, a move which changes the outcome from win to loss.

Circa 1858 (1905 in English): A modern German compound, the construct being zug+zwang.  Zug (move) was from the Middle High German zuc & zug, from the Old High German zug ,from Proto-Germanic tugiz, an abstract noun belonging to the Proto-Germanic teuhaną, from the primitive Indo-European dewk (to pull, lead); it was cognate with the Dutch teug and the Old English tyge.  Zwang (compulsion; force; constraint; obligation) was from the Middle High German twanc, from the Old High German geduang.  It belongs to the verb zwingen and cognates include the Dutch dwang and the Swedish tvång.  The word is best understood as "compulsion to move" or, in the jargon of chess players: "Your turn to move and whatever you do it'll make things worse for you", thus the application to game theory, military strategy and politics where there's often a need to determine the "least worse option".  Zugzwang is a noun; the noun plural is Zugzwänge.  In English, derived forms such as zugzwanged, zugzwanging, zugzwangish, zugzwanger, zugzwangesque and zugzwangee are non-standard and used usually for humorous effect.

Chess and Game Theory

Endgame: Black's turn and Zugzwang! Daily Chess Musings depiction of the elegance of zugwang.

The first known use of Zugzwang in the German chess literature appears in 1858; the first appearance in English in 1905.  However, the concept of Zugzwang had been known and written about for centuries, the classic work being Italian chess player Alessandro Salvio's (circa 1575–circa 1640) study of endgames published in 1604 and he referenced Shatranj writings from the early ninth century, some thousand years before the first known use of the term.  Positions with Zugzwang are not rare in chess endgames, best known in the king-rook & king-pawn conjunctions.  Positions of reciprocal Zugzwang are important in the analysis of endgames but although the concept is easily demonstrated and understood, that's true only of the "simple Zugzwang" and the so-called "sequential Zugzwang" will typically be a multi-move thing which demands an understanding of even dozens of permutations of possibilities.

Rendered by Vovsoft as cartoon character: a brunette Lindsay Lohan at the chessboard.  In her youth, she was a bit of a zugzwanger.

Zugzwang describes a situation where one player is put at a disadvantage because they have to make a move although the player would prefer to pass and make no move. The fact the player must make a move means their position will be significantly weaker than the hypothetical one in which it is the opponent's turn to move. In game theory, it specifically means that it directly changes the outcome of the game from a win to a loss.  Chess textbooks often cite as the classic Zugzwang a match in Copenhagen in 1923; on that day the German Grandmaster (the title inaugurated in 1950) Friedrich Sämisch (1896–1975) played White against the Latvian-born Danish Aron Nimzowitsch (1886-1935).  Playing Black, Nimzowitsch didn’t play a tactical match in the conventional sense but instead applied positional advantage, gradually to limit his opponent’s options until, as endgame was reached, White was left with no move which didn’t worsen his position; whatever he choose would lead either to material loss or strategic collapse and it’s said in his notebook, Nimzowitsch concluded his entry on the match with “Zugzwang!”  A noted eccentric in a discipline where idiosyncratic behaviour is not unknown, the Polish Grandmaster Savielly Tartakower (1887-1956) observed of Nimzowitsch: “He pretends to be crazy in order to drive us all crazy.”

French sculptor Auguste Rodin's (1840-1917) The Thinker (1904), Musée Rodin, Paris (left) and Boris Johnson (b 1964; UK prime-minister 2019-2022) thinking about which would be his least worst option (left).

In its classic form chess is a game between two, played with fixed rules on a board with a known number of pieces (32) and squares (64).  Although a count of the possible permutations in a match would yield a very big number, in chess, the concept of Zugwang is simple and understood the same way by those playing black and white; information for both sides is complete and while the concept can find an expression both combinatorial game theory (CGT) and classical game theory, the paths can be different.  CGT and GT (the latter historically a tool of economic modelers and strategists in many fields) are both mathematical studies of games behaviour which can be imagined as “game-like” but differ in focus, assumptions, and applications.  In CGT the basic model (as in chess) is of a two-player deterministic game in which the moves alternate and luck or chance is not an element.  This compares GT in which there may be any number of players, moves may be simultaneous, the option exists not to move, information known to players may be incomplete (or asymmetric) and luck & chance exist among many variables (which can include all of Donald Rumsfeld’s (1932–2021: US defense secretary 1975-1977 & 2001-2006) helpful categories (known knowns, known unknowns, unknown unknowns & (most intriguingly) unknown knowns).  So, while CGT is a good device for deconstructing chess and such because such games are of finite duration and players focus exclusively on “winning” (and if need be switching to “avoiding defeat”), GT is a tool which can be applied to maximize advantage or utility in situations where a win/defeat dichotomy is either not sought or becomes impossible.  The difference then is that CGT envisages two players seeking to solve deterministic puzzle on a win/lose basis while GT is there to describes & analyse strategic interactions between & among rational actors, some or all of which may be operating with some degree of uncertainty.

Serial zugzwanger Barnaby Joyce (b 1967; thrice (between local difficulties) deputy prime minister of Australia 2016-2022), Parliament House, Canberra.  More than many, Mr Joyce has had to sit and ponder what might at that moment be his “least worst” option.  He has made choices good and bad.

In politics and military conflicts (a spectrum condition according to Prussian general and military theorist Carl von Clausewitz (1780–1831)), a zugzwang often is seen as parties are compelled to take their “least worst” option, even when circumstances dictate it would be better to “do nothing”.  However, the zugzwang can lie in the eye of the beholder and that why the unexpected Ardennes Offensive, (Wacht am Rhein (Watch on the Rhine) the German code-name though popularly known in the West as the Battle of the Bulge, (December 1944-January 1945)) was ordered by Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945).  It was the last major German strategic offensive of World War II (1939-1945) and among all but the most sycophantic of Hitler’s military advisors it was thought not “least worst” but rather “worse than the sensible” option (although not all the generals at the time concurred with what constituted “sensible”).  Under the Nazi state’s Führerprinzip (leader principle) the concept was that in any institutional structure authority was vested in the designated leader and that meant ultimately Hitler’s rule was a personal dictatorship (although the extent of the fragmentation wasn’t understood until after the war) so while the generals could warn, counsel & advise, ultimately decisions were based on the Führer’s will, thus the Ardennes Offensive.

While the operation made no strategic sense to the conventionally-schooled generals, to Hitler it was compelling because the tide of the war had forced him to pursue the only strategy left: delay what appeared an inevitable defeat in the hope the (real but still suppressed) political tensions between his opponents would sunder their alliance, allowing him to direct his resources against one front rather than three (four if the battle in the skies was considered a distinct theatre as many historians argue).  Like Charles Dickens’ (1812–1870) Mr Micawber in David Copperfield (1849-1850), Hitler was hoping “something would turn up”.  Because of the disparity in military and economic strength between the German and Allied forces, in retrospect, the Ardennes Offensive appears nonsensical but, at the time, it was a rational tactic even if the strategy of “delay” was flawed.  Confronted as he was by attacks from the west, east and south, continuing to fight a defensive war would lead only to an inevitable defeat; an offensive in the east was impossible because of the strength of the Red Army and even a major battlefield victor in the south would have no strategic significance so it was only in the west a glimmer of success seemed to beckon.

The bulge.

In the last great example of the professionalism and tactical improvisation which was a hallmark of their operations during the war, secretly the Wehrmacht (the German military) assembled a large armored force (essentially under the eyes of the Allies) and staged a surprise attack through the Ardennes, aided immeasurably by the cover of heavy, low clouds which precluded both Allied reconnaissance and deployment of their overwhelming strength in air-power.  Initially successful, the advance punched several holes in the line, the shape of which, when marked on a map, lent the campaign the name “Battle of the Bulge” but within days the weather cleared, allowing the Allies to unleash almost unopposed their overwhelming superiority in air power.  This, combined with their vast military and logistical resources, doomed the Ardennes Offensive, inflicting losses from which the Wehrmacht never recovered: From mid-January on, German forces never regained the initiative, retreating on all fronts until the inevitable defeat in May.  A last throw of the dice, the offensive both failed and squandered precious (and often irreplaceable) resources badly needed elsewhere.  By December 1944, Hitler had been confronted with a zugzwang (of his own making) and while whatever he did would have made Germany’s position worse, at least arguably, the Ardennes Offensive was not even his “least worse” option.

Sherry

Sherry (pronounced sher-ee)

(1) A fortified, amber-colored wine, originally from the Jerez region of southern Spain or any of various similar wines made elsewhere; usually drunk as an apéritif.  Technically, a white wine.

(2) A female given name, a form of Charlotte.

(3) A reddish color in the amber-brown spectrum.

1590-1600: A (mistaken singular) back formation from the earlier sherris (1530s), from the Spanish (vino de) Xeres ((wine from) Xeres).  Xeres is now modern-day Jerez (Roman (urbs) Caesaris) in Spain, near the port of Cadiz, where the wine was made.  The official name is Jerez-Xérès-Sherry, one of Spain's wine regions, a Denominación de Origen Protegida (DOP).  The word sherry is an anglicisation of Xérès (Jerez) and the drink was previously known as sack, from the Spanish saca (extraction) from the solera.  In EU law, sherry has protected designation of origin status, and under Spanish law, to be so labelled, the product must be produced in the "Sherry Triangle", an area in the province of Cádiz between Jerez de la Frontera, Sanlúcar de Barrameda, and El Puerto de Santa María.  In 1933 the Jerez denominación de origen was the first Spanish denominación officially thus recognized, named D.O. Jerez-Xeres-Sherry and sharing the same governing council as D.O. Manzanilla Sanlúcar de Barrameda.  The name "sherry" continues to be used by US producers where, to conform to domestic legislation, it must be labeled with a region of origin such as Oregon Sherry but can’t be sold in the EU (European Union) because of the protected status laws.  Both Canadian and Australian winemakers now use the term Apera instead of Sherry, although customers seem still to favor the original.  Sherry is a noun; the noun plural is sherries.

Sherry Girl (in bold two-copa ‘Sherry Stance’) and the ultimate sherry party.

Held annually since 2014 (pandemics permitting), Sherry Week is a week-long celebration of “gastronomical and cultural events” enjoyed by the “vibrant global Sherry community” which gathers to “showcase the wine’s incredible diversity, from the dry crispness of Fino to the velvety sweetness of Cream.”  Although the multi-venue Sherry Week is now the best known meeting on the Sherry calendar, worldwide, since 2014 some 20,000 events have taken place with the approval of the Consejo Regulador for Jerez-Xérès-Sherry and Manzanilla; to date there have been more than half a million attendees and in 2024 alone there were over 3,000 registered events in 29 countries in cities including London, Madrid, São Paulo, Tokyo, Buenos Aires, Auckland and Shanghai.  Daringly, the publicity for the 2025 gatherings introduced “Sherry Girl” whose “bold two-copa ‘Sherry Stance’” is now an icon for the drink.  Sherry Girl is new but dedicated sherryphiles will be pleased to learn the traditional “Sherry Ruta” (Sherry route) remains on the schedule, again in “multi-venue routes offering exclusive pairing experiences”, described as “not a typical wine crawl but a triumphant strut with tipples, tastings, and tapas.”  For the adventurous, participants are able to use the interactive venue map to curate their own Sherry Ruta in their city of choice.  The 2025 event will be held between 3-9 November. 

Dry Sack, a sherry preferred by many because of its balance; straddling sweet and dry.  Purists tend to the dry finos while sweeter cream sherries are recommended for neophytes.

The name "sherry" continues to be used by US producers where, to conform to domestic legislation, it must be labeled with a region of origin such as Oregon Sherry but can’t be sold in the EU because of their protected status laws.  Both Canadian and Australian winemakers now use the term Apera instead of Sherry, although customers seem still to favor the original.  For the upper-middle class and beyond, sherry parties were a fixture of late-Victorian and Edwardian social life but the dislocations of the World War I (1914-1918) seemed to render them extinct. It turned out however to be a postponement and sherry parties were revived, the height of their popularity being enjoyed during the 1930s until the post-war austerity the UK endured after World War II (1939-1945) saw them a relic restricted moistly to Oxbridge dons, the genuinely still rich, Church of England bishops and such although they never quite vanished and those who subscribe to magazines like Country Life or Tatler probably still exchange invitations to each other's sherry parties.

For Sherry and Cocktail Parties, trade literature by Fortnum and Mason, Regent Street, Piccadilly, London, circa 1936.  The luxury department store, Fortnum & Mason, used the services of the Stuart Advertising Agency, which employed designers to produce witty and informative catalogues and the decorative art is illustrative of British commercial art in this period.

For the women who tended to be hostess and organizer, there were advantages compared with the tamer tea party.  Sherry glasses took less space than cups of tea, with all the associated paraphernalia of spoons, milk and sugar and, it being almost impossible to eat and drink while balancing a cup and saucer and conveying cake to the mouth, the tea party demanded tables and chairs.  The sherry glass and finger-food was easier for while one must sit for tea, one can stand for sherry so twice the number of guests could be asked.  Sherry parties indeed needed to be tightly packed affairs, the mix of social intimacy and alcohol encouraging mingling and they also attracted more men for whom the offer of held little attraction.  The traditional timing between six and eight suited the male lifestyle of the time and they were doubtless more attracted to women drinking sherry than women drinking tea for while the raffish types knew it wasn't quite the "leg-opener" as gin was renowned to be, every little bit helps.

In hair color and related fields, "sherry red" (not to be confused with the brighter "cherry red") is a rich hue on the spectrum from amber to dark brown: Lindsay Lohan (who would be the ideal "Cherry Girl" model) demonstrates on the red carpet at the Liz & Dick premiere, Los Angeles, 2012.

Sherry party planner.

Novelist Laura Troubridge (Lady Troubridge, (née Gurney; 1867-1946)), who in 1935 published what became the standard English work on the topic, Etiquette and Entertaining: to help you on your social way, devoted an entire chapter to the sherry party.  She espoused an informal approach as both cheap and chic, suggesting guests be invited by telephone or with “Sherry, six to eight” written on a visiting card and popped in an envelope.   She recommended no more than two-dozen guests, a half-dozen bottles of sherry, a couple of heavy cut-glass decanters and some plates of “dry and biscuity” eats: cheese straws, oat biscuits, cubes of cheddar.  This, she said, was enough to supply the makings of a “…jolly kind of party, with plenty of cigarettes and talk that will probably last until half past seven or eight.”

Cocktail Party by Laurence Fellows (1885-1964), Esquire magazine, September 1937.

The Sherry party should not be confused with the cocktail party.  Cocktail parties in drawing rooms at which Martinis were served often were much more louche affairs.  Note the elegantly sceptical expressions on the faces of the women, all of whom have become immured to the tricks of “charming men in suits”.  For women, sherry parties were more welcoming places.

Bunker

Bunker (pronounced buhng-ker)

(1) A large bin or receptacle; a fixed chest or box.

(2) In military use, historically a fortification set mostly below the surface of the ground with overhead protection provided by logs and earth or by concrete and fitted with above-ground embrasures through which guns may be fired.

(3) A fortification set mostly below the surface of the ground and used for a variety of purposes.

(4) In golf, an obstacle, classically a sand trap but sometimes a mound of dirt, constituting a hazard.

(5) In nautical use, to provide fuel for a vessel.

(6) In nautical use, to convey bulk cargo (except grain) from a vessel to an adjacent storehouse.

(7) In golf, to hit a ball into a bunker.

(8) To equip with or as if with bunkers.

(9) In military use, to place personnel or materiel in a bunker or bunkers (sometimes as “bunker down”).

1755–1760: From the Scottish bonkar (box, chest (also “seat” (in the sense of “bench”) of obscure origin but etymologists conclude the use related to furniture hints at a relationship with banker (bench).  Alternatively, it may be from a Scandinavian source such as the Old Swedish bunke (boards used to protect the cargo of a ship).  The meaning “receptacle for coal aboard a ship” was in use by at least 1839 (coal-burning steamships coming into general use in the 1820s).  The use to describe the obstacles on golf courses is documented from 1824 (probably from the extended sense “earthen seat” which dates from 1805) but perhaps surprisingly, the familiar sense from military use (dug-out fortification) seems not to have appeared before World War I (1914-1918) although the structures so described had for millennia existed.  “Bunkermate” was army slang for the individual with whom one shares a bunker while the now obsolete “bunkerman” (“bunkermen” the plural”) referred to someone (often the man in charge) who worked at an industrial coal storage bunker.  Bunker & bunkerage is a noun, bunkering is a noun & verb, bunkered is a verb and bunkerish, bunkeresque, bunkerless & bunkerlike are adjectives; the noun plural is bunkers.

Just as ships called “coalers” were used to transport coal to and from shore-based “coal stations”, it was “oilers” which took oil to storage tanks or out to sea to refuel ships (a common naval procedure) and these STS (ship-to-ship) transfers were called “bunkering” as the black stuff was pumped, bunker-to-bunker.  That the coal used by steamships was stored on-board in compartments called “coal bunkers” led ultimately to another derived term: “bunker oil”.  When in the late nineteenth century ships began the transition from being fuelled by coal to burning oil, the receptacles of course became “oil bunkers” (among sailors nearly always clipped to “bunker”) and as refining processes evolved, the fuel specifically produced for oceangoing ships came to be called “bunker oil”.

Bunker oil is “dirty stuff”, a highly viscous, heavy fuel oil which is essentially the residue of crude oil refining; it’s that which remains after the more refined and volatile products (gasoline (petrol), kerosene, diesel etc) have been extracted.  Until late in the twentieth century, the orthodox view of economists was its use in big ships was a good thing because it was a product for which industry had little other use and, as essentially a by-product, it was relatively cheap.  It came in three flavours: (1) Bunker A: Light fuel oil (similar to a heavy diesel), (2) Bunker B: An oil of intermediate viscosity used in engines larger than marine diesels but smaller than those used in the big ships and (3) Bunker C: Heavy fuel oil used in container ships and such which use VLD (very large displacement), slow running engines with a huge reciprocating mass.  Because of its composition, Bucker C especially produced much pollution and although much of this happened at sea (unseen by most but with obvious implications), when ships reached harbor to dock, all the smoke and soot became obvious.  Over the years, the worst of the pollution from the burning of bunker oil greatly has been reduced (the work underway even before the Greta Thunberg (b 2003) era), sometimes by the simple expedient of spraying a mist of water through the smoke.

Floor-plans of the upper (Vorbunker) and lower (Führerbunker) levels of the structure now commonly referred to collectively as the Führerbunker.

History’s most infamous bunker remains the Berlin Führerbunker in which Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945) spent much of the last few months of his life.  In the architectural sense there were a number of Führerbunkers built, one at each of the semi-permanent Führerhauptquartiere (Führer Headquarters) created for the German military campaigns and several others built where required but it’s the one in Berlin which is remembered as “the Führerbunker”.  Before 1944 when the intensification of the air raids by the RAF (Royal Air Force) and USAAF (US Army Air Force) the term Führerbunker seems rarely to have been used other than by the architects and others involved in their construction and it wasn’t a designation like Führerhauptquartiere which the military and other institutions of state shifted between locations (rather as “Air Force One” is attached not to a specific airframe but whatever aircraft in which the US president is travelling).  In subsequent historical writing, the term Führerbunker tends often to be applied to the whole, two-level complex in Berlin and although it was only the lower layer which officially was designated as that, for most purposes the distinction is not significant.  In military documents, after January, 1945 the Führerbunker was referred to as Führerhauptquartiere.

Führerbunker tourist information board, Berlin, Germany.

Only an information board at the intersection of den Ministergärten and Gertrud-Kolmar-Straße, erected by the German Goverment in 2006 prior to that year's FIFA (Fédération Internationale de Football Association (International Federation of Association Football)) World Cup now marks the place on Berlin's Wilhelmstrasse 77 where once the Führerbunker was located.  The Soviet occupation forces razed the new Reich Chancellery and demolished all the bunker's above-ground structures but the subsequent GDR (Deutsche Demokratische Republik (German Democratic Republic; the old East Germany) 1949-1990) abandoned attempts completely to destroy what lay beneath.  Until after the fall of the Berlin Wall (1961-1989) the site remained unused and neglected, “re-discovered” only during excavations by property developers, the government insisting on the destruction on whatever was uncovered and, sensitive still to the spectre of “Neo-Nazi shrines”, for years the bunker’s location was never divulged, even as unremarkable buildings (an unfortunate aspect of post-unification Berlin) began to appear on the site.  Most of what would have covered the Führerbunker’s footprint is now a supermarket car park.

The first part of the complex to be built was the Vorbunker (upper bunker or forward bunker), an underground facility of reinforced concrete intended only as a temporary air-raid shelter for Hitler and his entourage in the old Reich Chancellery.  Substantially completed during 1936-1937, it was until 1943 listed in documents as the Luftschutzbunker der Reichskanzlei (Reich Chancellery Air-Raid Shelter), the Vorbunker label applied only in 1944 when the lower level (the Führerbunker proper) was appended.  In mid January, 1945, Hitler moved into the Führerbunker and, as the military situation deteriorated, his appearances above ground became less frequent until by late March he rarely saw the sky,  Finally, on 30 April, he committed suicide.

Bunker Busters

Northrop Grumman publicity shot of B2-Spirit from below, showing the twin bomb-bay doors through which the GBU-57 are released.

Awful as they are, there's an undeniable beauty in the engineering of some weapons and it's unfortunate humankind never collectively has resolved exclusively to devote such ingenuity to stuff other than us blowing up each other.  That’s not a new sentiment, being one philosophers and others have for millennia expressed in various ways although since the advent of nuclear weapons, concerns understandably become heightened.  Like every form of military technology ever deployed, once the “genie is out of the bottle” the problem is there to be managed and at the dawn of the atomic age, delivering a lecture in 1936, the British chemist and physicist Francis Aston (1877–1945) (who created the mass spectrograph, winning the 1922 Nobel Prize in Chemistry for his use of it to discover and identify the isotopes in many non-radioactive elements and for his enunciation of the whole number rule) observed:

“There are those about us who say that such research should be stopped by law, alleging that man's destructive powers are already large enough.  So, no doubt, the more elderly and ape-like of our ancestors objected to the innovation of cooked food and pointed out the great dangers attending the use of the newly discovered agency, fire.  Personally, I think there is no doubt that sub-atomic energy is available all around us and that one day man will release and control its almost infinite power.  We cannot prevent him from doing so and can only hope that he will not use it exclusively in blowing up his next door neighbor.”

The use in June 2025 by the USAF (US Air Force) of fourteen of its Boeing GBU-57 (Guided Bomb Unit-57) Massive Ordnance Penetrators (MOP) bombs against underground targets in Iran (twelve on the Fordow Uranium Enrichment Plant and two on the Natanz nuclear facility) meant “Bunker Buster” hit the headlines.  Carried by the Northrop B-2 Spirit heavy bomber (built between 1989-2000), the GBU-57 is a 14,000 kg (30,000 lb) bomb with a casing designed to withstand the stress of penetrating through layers of reinforced concrete or thick rock.  “Bunker buster” bombs have been around for a while, the ancestors of today’s devices first built for the German military early in World War II (1939-1945) and the principle remains unchanged to this day: up-scaled armor-piercing shells.  The initial purpose was to produce a weapon with a casing strong enough to withstand the forces imposed when impacting reinforced concrete structures, the idea simple in that what was needed was a delivery system which could “bust through” whatever protective layers surrounded a target, allowing the explosive charge to do damage where needed rtaher than wastefully being expended on an outer skin.  The German weapons proved effective but inevitably triggered an “arms race” in that as the war progressed, the concrete layers became thicker, walls over 2 metres (6.6 feet) and ceilings of 5 (16) being constructed by 1943.  Technological development continued and the idea extended to rocket propelled bombs optimized both for armor-piercing and aerodynamic efficiency, velocity a significant “mass multiplier” which made the weapons still more effective.

USAF test-flight footage of Northrop B2-Spirit dropping two GBU-57 "Bunker Buster" bombs.

Concurrent with this, the British developed the first true “bunker busters”, building on the idea of the naval torpedo, one aspect of which was in exploding a short distance from its target, it was highly damaging because it was able to take advantage of one of the properties of water (quite strange stuff according to those who study it) which is it doesn’t compress.  What that meant was it was often the “shock wave” of the water rather than the blast itself which could breach a hull, the same principle used for the famous “bouncing bombs” used for the RAF’s “Dambuster” (Operation Chastise, 17 May 1943) raids on German dams.  Because of the way water behaved, it wasn’t necessary to score the “direct hit” which had been the ideal in the early days of aerial warfare.

RAF Bomber Command archive photograph of Avro Lancaster (built between 1941-1946) in flight with Grand Slam mounted (left) and a comparison of the Tallboy & Grand Slam (right), illustrating how the latter was in most respects a scaled-up version of the former.  To carry the big Grand Slams, 32 “B1 Special” Lancasters were in 1945 built with up-rated Rolls-Royce Merlin V12 engines, the removal of the bomb doors (the Grand Slam carried externally, its dimensions exceeding internal capacity), deleted front and mid-upper gun turrets, no radar equipment and a strengthened undercarriage.  Such was the concern with weight (especially for take-off) that just about anything non-essential was removed from the B1 Specials, even three of the four fire axes and its crew door ladder.  In the US, Boeing went through a similar exercise to produce the run of “Silverplate” B-29 Superfortresses able to carry the first A-bombs used in August, 1945. 

Best known of the British devices were the so called “earthquake bombs”, the Tallboy (12,000 lb; 5.4 ton) & Grand Slam (22,000 lb, 10 ton) which, despite the impressive bulk, were classified by the War Office as “medium capacity”.  The terms “Medium Capacity” (MC) & “High Capacity” referenced not the gross weight or physical dimensions but ratio of explosive filler to the total weight of the construction (ie how much was explosive compared to the casing and ancillary components).  Because both had thick casings to ensure penetration deep into hardened targets (bunkers and other structures encased in rock or reinforced concrete) before exploding, the internal dimensions accordingly were reduced compared with the ratio typical of contemporary ordinance.  A High Capacity (HC) bomb (a typical “general-purpose” bomb) had a thinner casing and a much higher proportion of explosive (sometimes over 70% of total weight).  These were intended for area bombing (known also as “carpet bombing”) and caused wide blast damage whereas the Tallboy & Grand Slam were penetrative with casings optimized for aerodynamic efficiency, their supersonic travel working as a mass-multiplier.  The Tallboy’s 5,200 lb (2.3 ton) explosive load was some 43% of its gross weight while the Grand Slam’s 9,100 lb (4 ton) absorbed 41%; this may be compared with the “big” 4000 lb (1.8 ton) HC “Blockbuster” which allocated 75% of the gross weight to its 3000 LB (1.4 ton) charge.  Like many things in engineering (not just in military matters) the ratio represented a trade-off, the MC design prioritizing penetrative power and structural destruction over blast radius.  The novelty of the Tallboy & Grand Slam was that as earthquake bombs, their destructive potential was able to be unleashed not necessarily by achieving a direct hit on a target but by entering the ground nearby, the explosion (1) creating an underground cavity (a camouflet) and (2) transmitting a shock-wave through the target’s foundations, leading to the structure collapsing into the newly created lacuna. 

The etymology of camouflet has an interesting history in both French and military mining.  Originally it meant “a whiff of smoke in the face (from a fire or pipe) and in figurative use it was a reference to a snub or slight insult (something unpleasant delivered directly to someone) and although the origin is murky and it may have been related to the earlier French verb camoufler (to disguise; to mask) which evolved also into “camouflage”.  In the specialized military jargon of siege warfare or mining (sapping), over the seventeen and nineteenth centuries “camouflet” referred to “an underground explosion that does not break the surface, but collapses enemy tunnels or fortifications by creating a subterranean void or shockwave”.  The use of this tactic is best remembered from the Western Front in World War I, some of the huge craters now tourist attractions.

Under watchful eyes: Grand Ayatollah Ali Khamenei (1939-2026; Supreme Leader, Islamic Republic of Iran 1989-2026) delivering a speech, sitting in front of the official portrait of the republic’s ever-unsmiling founder, Grand Ayatollah Ruhollah Khomeini (1900-1989; Supreme Leader, Islamic Republic of Iran, 1979-1989).  Ayatollah Khamenei seemed in 1989 an improbable choice as Supreme Leader because others were better credentialed but though cautious and uncharismatic, he was for almost four decades a great survivor in a troubled region but finally was killed by the sheer weight of US firepower and the effectiveness of its intelligence gathering (at least some of which is assumed to have come from within the Iranian regime).  What the death of the Supreme Leader reminded everyone was that bunkers have their limits so, just as recent events will have strengthened the ayatollahs' view that possession of an IND ( independent nuclear deterrent) is both wise and Godly, they'll also want deeper holes dug and more concrete poured.  

Since aerial bombing began to be used as a strategic weapon, of great interest has been the debate over the BDA (battle damage assessment) and this issue emerged almost as soon as the bunker buster attack on Iran was announced, focused on the extent to which the MOPs had damaged the targets, the deepest of which were concealed deep inside a mountain.  BDA is a constantly evolving science and while satellites have made analysis of surface damage highly refined, it’s more difficult to understand what has happened deep underground.  Indeed, it wasn’t until the USSBS (United States Strategic Bombing Survey) teams toured Germany and Japan in 1945-1946, conducting interviews, economic analysis and site surveys that a useful (and substantially accurate) understanding emerged of the effectiveness of bombing although what technological advances have allowed for those with the resources is the so-called “panacea targets” (ie critical infrastructure and such once dismissed by planners because the required precision was for many reasons rarely attainable) can now accurately be targeted, the USAF able to drop a bomb within a few feet of the aiming point.  As the phrase is used by the military, the Fordow Uranium Enrichment Plant is as classic “panacea target” but whether even a technically successful strike will achieve the desired political outcome remains to be seen.

Mr Trump, in a moment of exasperation, posted on Truth Social of Iran & Israel: “We basically have two countries that have been fighting so long and so hard that they don't know what the fuck they're doing."  Actually, both know exactly WTF they're doing; it's just Mr Trump (and many others) would prefer they didn't do it.

Donald Trump (b 1946; US president 2017-2021 and since 2025) claimed “total obliteration” of the targets while Grand Ayatollah Khamenei admitted only there had been “some damage” and which is closer to the truth should one day be revealed.  Even modelling of the effects has probably been inconclusive because the deeper one goes underground, the greater the number of variables in the natural structure and the nature of the internal built environment will also influence blast behaviour.  All experts seem to agree much damage will have been done but what can’t yet be determined is what has been suffered by the facilities which sit as deep as 80 m (260 feet) inside the mountain although, as the name implies, “bunker busters” are designed for buried targets and it’s not always required for blast directly to reach target.  Because the shock-wave can travel through earth & rock, the effect is something like that of an earthquake and if the structure sufficiently is affected, it may be the area can be rendered geologically too unstable again to be used for its original purpose.

Within minutes of the bombing having been announced, legal academics were being interviewed (though not by Fox News) to explain why the attacks were unlawful under international law and in a sign of the times, the White House didn't bother to discuss fine legal points like the distinction between "preventive & pre-emptive strikes", preferring (like Fox News) to focus on the damage done.  However, whatever the murkiness surrounding the BDA, many analysts have concluded that even if before the attacks the Iranian authorities had not approved the creation of a nuclear weapon, this attack will have persuaded them one is essential for “regime survival”, thus the interest in both Tel Aviv and (despite denials) Washington DC in “regime change”.  The consensus seems to be Grand Ayatollah Khamenei had, prior to the strike, not ordered the creation of a nuclear weapon but that all energies were directed towards completing the preliminary steps, thus the enriching of uranium to ten times the level required for use in power generation; the ayatollah liked to keep his options open.  So, the fear of some is the attacks, even if they have (by weeks, months or years) delayed the Islamic Republic’s work on nuclear development, may prove counter-productive in that they convince the ayatollahs to concur with the reasoning of every state which since 1945 has adopted an IND.  That reasoning was not complex and hasn’t changed since first a prehistoric man picked up a stout stick to wave as a pre-lingual message to potential adversaries, warning them there would be consequences for aggression.  Although a theocracy, those who command power in the Islamic Republic are part of an opaque political institution and in the West there had been reports of the struggle being conducted anticipation of the death of the aged (and reportedly ailing) Supreme Leader, the matter of “an Iranian IND” one of the central dynamics.  Many will be following what unfolds in Tehran and the observers will not be only in Tel Aviv and Washington DC because in the region and beyond, few things focus the mind like the thought of ayatollahs with A-Bombs.

Of the word "bust"

The Great Bust: The Depression of the Thirties (1962) by Jack Lang (left), highly qualified content provider Busty Buffy (b 1996, who has never been accused of misleading advertising, centre) and The people's champion, Mr Lang, bust of Jack Lang, painted cast plaster by an unknown artist, circa 1927, National Portrait Gallery, Canberra, Australia (right).  Remembered for a few things, Jack Lang (1876–1975; premier of the Australian state of New South Wales (NSW) 1925-1927 & 1930-1932) remains best known for having in 1932 been the first head of government in the British Empire to have been sacked by the Crown since William IV (1765–1837; King of the UK 1830-1837) in 1834 dismissed Lord Melbourne (1779–1848; prime minister of the UK 1834 & 1835-1841).

Those learning English must think it at least careless things can both be (1) “razed to the ground” (totally to destroy something (typically a structure), usually by demolition or incineration) and (2) “raised to the sky” (physically lifted upwards).  The etymologies of “raze” and “raise” differ but they’re pronounced the same so it’s fortunate the spellings vary but in other troublesome examples of unrelated meanings, spelling and pronunciation can align, as in “bust”.  When used in ways most directly related to human anatomy: (1) “a sculptural portrayal of a person's head and shoulders” & (2) “the circumference of a woman's chest around her breasts” there is an etymological link but these uses wholly are unconnected with bust’s other senses.

Bust of Lindsay Lohan in white marble by Stable Diffusion.  Sculptures of just the neck and head came also to be called “busts”, the emphasis on the technique rather than the original definition.

Bust in the sense of “a sculpture of upper torso and head” dates from the 1690s and was from the sixteenth century French buste, from the Italian busto (upper body; torso), from the Latin bustum (funeral monument, tomb (although the original sense was “funeral pyre, place where corpses are burned”)) and it may have emerged (as a shortened form) from ambustum, neuter of ambustus (burned around), past participle of amburere (burn around, scorch), the construct being ambi- (around) + urere (to burn),  The alternative etymology traces a link to the Old Latin boro, the early form of the Classical Latin uro (to burn) and it’s though the development in Italian was influenced by the Etruscan custom of keeping the ashes of the dead in an urn shaped like the person when alive.  Thus the use, common by the 1720s of bust (a clipping from the French buste) being “a carving of the “trunk of the human body from the chest up”.  From this came the meaning “dimension of the bosom; the measurement around a woman's body at the level of her breasts” and that evolved on the basis of a comparison with the sculptures, the base of which was described as the “bust-line”, the term still used in dress-making (and for other comparative purposes as one of the three “vital statistics” by which women are judged (bust, waist, hips), each circumference having an “ideal range”).  It’s not known when “bust” and “bust-line” came into oral use among dress-makers and related professions but it’s documented since the 1880s.  Derived forms (sometimes hyphenated) include busty (tending to bustiness, thus Busty Buffy's choice of stage-name), overbust & underbust (technical terms in women's fashion referencing specific measurements) and bustier (a tight-fitting women's top which covers (most or all of) the bust.

Benito Mussolini (1883-1945; Duce (leader) & Prime-Minister of Italy 1922-1943) standing beside his “portrait bust” (1926).

The bust was carved by Swiss sculptor Ernest Durig (1894–1962) who gained posthumous notoriety when his career as a forger was revealed with the publication of his drawings which he’d represented as being from the hand of the French sculptor Auguste Rodin (1840-1917) under whom he claimed to have studied.  Mussolini appears here in one of the subsequently much caricatured poses which were a part of his personality cult.  More than one of the Duce's counterparts in other nations was known to have made fun of some of the more outré poses and affectations, the outstretched chin, right hand braced against the hip and straddle-legged stance among the popular motifs. 

“Portrait bust” in marble (circa 1895) of (1815-1989; chancellor of the German Empire (the "Second Reich") 1871-1890) by the German Sculptor Reinhold Begas (1831-1911).

 In sculpture, what had been known as the “portrait statue” came after the 1690s to be known as the “portrait bust” although both terms meant “sculpture of upper torso and head” and these proved a popular choice for military figures because the aspect enabled the inclusion of bling such as epaulettes, medals and other decorations and being depictions of the human figure, busts came to be vested with special significance by the superstitious.  In early 1939, during construction of the new Reich Chancellery in Berlin, workmen dropped one of the busts of Otto von Bismarck by Reinhold Begas, breaking it at the neck.  For decades, the bust had sat in the old Chancellery and the building’s project manager, Albert Speer (1905–1981; Nazi court architect 1934-1942; Nazi minister of armaments and war production 1942-1945), knowing Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945) believed the Reich Eagle toppling from the post-office building right at the beginning of World War I had been a harbinger of doom for the nation, kept the accident secret, hurriedly issuing a commission to the German sculptor Arno Breker (1900–1991) who carved an exact copy.  To give the fake the necessary patina, it was soaked for a time in strong, black tea, the porous quality of marble enabling the fluid to induce some accelerated aging.  Interestingly, in his (sometimes reliable) memoir (Erinnerungen (Memories or Reminiscences) and published in English as Inside the Third Reich (1969)), even the technocratic Speer admitted of the accident: “I felt this as an evil omen”.

The other senses of bust (as a noun, verb & adjective) are diverse (and sometimes diametric opposites and include: “to break or fail”; “to be caught doing something unlawful / illicit / disgusting etc”; “to debunk”; “dramatically or unexpectedly to succeed”; “to go broke”; “to break in” (horses, girlfriends etc): “to assault”; the downward portion of an economic cycle (ie “boom & bust”); “the act of effecting an arrest” and “someone (especially in professional sport) who failed to perform to expectation”.  That’s quite a range and that has meant the creation of dozens of idiomatic forms, the best known of which include: “boom & bust”, “busted flush”, “dambuster”, “bunker buster”,  “busted arse country”, “drug bust”, “cloud bust”, belly-busting, bust one's ass (or butt), bust a gut, bust a move, bust a nut, bust-down, bust loose, bust off, bust one's balls, bust-out, sod buster, bust the dust, myth-busting and trend-busting.  In the sense of “breaking through”, bust was from the Middle English busten, a variant of bursten & bresten (to burst) and may be compared with the Low German basten & barsten (to burst).  Bust in the sense of “break”, “smash”, “fail”, “arrest” etc was a creation of mid-nineteenth century US English and is of uncertain inspiration but most etymologists seem to concur it was likely a modification of “burst” effected with a phonetic alteration but it’s not impossible it came directly as an imperfect echoic of Germanic speech.  The apparent contradiction of bust meaning both “fail” and “dramatically succeed” happened because the former was an allusion to “being busted” (ie broken) while the latter meaning used the notion of “busting through”.