Kamikaze

Kamikaze (pronounced kah-mi-kah-zee or kah-muh-kah-zee)

(1) A member of a World War II era special corps in the Japanese air force charged with the suicidal mission of crashing an aircraft laden with explosives into an enemy target, especially Allied Naval vessels.

(2) In later use, one of the (adapted or specifically built) airplanes used for this purpose.

(3) By extension, a person or thing that behaves in a wildly reckless or destructive manner; as a modifier, something extremely foolhardy and possibly self-defeating.

(4) Of, pertaining to, undertaken by, or characteristic of a kamikaze; a kamikaze pilot; a kamikaze attack.

(5) A cocktail made with equal parts vodka, triple sec and lime juice.

(6) In slang, disastrously to fail.

(7) In surfing, a deliberate wipeout.

1945: From the Japanese 神風 (かみかぜ) (kamikaze) (suicide flyer), the construct being kami(y) (god (the earlier form was kamui)) + kaze (wind (the earlier form was kanzai)), usually translated as “divine wind” (“spirit wind” appearing in some early translations), a reference to the winds which, according to Japanese folklore, destroying Kublai Khan's Mongol invasionfleet in 1281.  In Japanase military parlance, the official designation was 神風特別攻撃隊 (Shinpū Tokubetsu Kōgekitai (Divine Wind Special Attack Unit)).  Kamikaze is a noun, verb & adjective and when used in the original sense should use an initial capital, the present participle is kamikazeing and the past participle, kamikazed; the noun plural is kamikazes.

HESA Shahed 136 UAV.

The use of kamikaze to describe the Iranian delta-winged UAV (unmanned aerial vehicle, popularly known as “drones”) being used by Russia against Ukraine reflects the use of the word which developed almost as soon as the existence of Japan’s wartime suicide bomber programme became known.  Kamikaze was the name of the aviators and their units but it was soon also applied to the aircraft used, some re-purposed from existing stocks and some rocket powered units designed for the purpose.  In 1944-1945 they were too little, too late but they proved the effectiveness of precision targeting although not all military cultures would accept the loss-rate the Kamikaze sustained.  In the war in Ukraine, the Iranian HESA Shahed 136 (شاهد ۱۳۶ (literally "Witness-136" and designated Geran-2 (Герань-2 (literally "Geranium-2") by the Russians) the kamikaze drone have proved extraordinarily effective being cheap enough to deploy en masse and capable of precision targeting.  They’re thus a realization of the century-old dream of the strategic bombing theorists to hit “panacea targets” at low cost while sustaining no casualties.  Early in World War II, the notion of panacea targets had been dismissed, not because as a strategy it was wrong but because the means of finding and bombing such targets didn’t exist, thus “carpet bombing” (bombing for several square miles around any target) was adopted because it was at the time the best option.  Later in the war, as techniques improved and air superiority was gained, panacea targets returned to the mission lists but the method was merely to reduce the size of the carpet.  The kamikaze drones however can be pre-programmed or remotely directed to hit a target within the tight parameters of a GPS signal.  The Russians know what to target because so many blueprints of Ukrainian infrastructure sit in Moscow’s archives and the success rate is high because, deployed in swarms because they’re so cheap, the old phrase from the 1930s can be updated for the UAV age: “The drone will always get through”.

Imperial Japan’s Kamikazes

By 1944, it was understood by the Japanese high command that the strategic gamble simultaneously to attack the US Pacific Fleet at anchor in Pearl Harbor and territories of the European powers to the south had failed.  Such was the wealth and industrial might of the US that within three years of the Pearl Harbor raid, the preponderance of Allied warships and military aircraft in the Pacific was overwhelming and Japan’s defeat was a matter only of time.  That couldn’t be avoided but within the high command it was thought that if the Americans understood how high would be the causality rate if they attempted and invasion of the home islands, that and the specter of occupation might be avoided.

USS New Mexico (BB-40) hit by Kamikaze off Okinawa, 12 May 1945.

Although on paper, late in the war, Japan had over 15,000 aircraft available for service, a lack of development meant most were at least obsolescent and shortages of fuel increasingly limited the extent to which they could be used in conventional operations.  From this analysis came the estimates that if used as “piloted bombs” on suicide missions, it might be possible to sink as many as 900 enemy warships and inflict perhaps 22,000 causalities.  In the event of an invasion, used at shorter range against landing craft or beachheads, it was thought an invasion would sustain over 50,000 casualties to by suicide attacks alone.  Although the Kamikaze attacks didn't achieve their strategic objective, they managed to sink dozens of ships and kill some 5000 allied personnel.  All the ships lost were smaller vessels (the largest an escort carrier) but significant damage was done to fleet carriers and cruisers and, like the (also often dismissed as strategically insignificant) German V1 & V2 attacks in Europe, significant resources had to be diverted from the battle plan to be re-tasked to strike the Kamikaze air-fields.  Most importantly however, so vast by 1944 was the US military machine that it was able easily to repair or replace as required.  Brought up in a different tradition, US Navy personnel the target of the Kamikaze dubbed the attacking pilots Baka (Japanese for “Idiot”).

HMS Sussex hit by Kamikaze (Mitsubishi Ki-51 (Sonia)), 26 July 1945.

Although it’s uncertain, the first Kamikaze mission may have been an attack on the carrier USS Frankin by Rear Admiral Arima (1895-1944) flying a Yokosuka D4Y Suisei (Allied codename Judy) and the early flights were undertaken using whatever airframes were available and regarded, like the pilots, as expendable.  Best remembered however, although only 850-odd were built, were the rockets designed for the purpose.  The Yokosuka MXY-7 Ohka (櫻花, (Ōka), (cherry blossom)) was a purpose-built, rocket-powered attack aircraft which was essentially a powered bomb with wings, conceptually similar to a modern “smart bomb” except that instead of the guidance being provided by on board computers and associated electronics which were sacrificed in the attack, there was a similarly expendable human pilot.  Shockingly single-purpose in its design parameters, the version most produced could attain 406 mph (648 km/h) in level flight at relatively low altitude and 526 mph (927 km/h) while in an attack dive but the greatest operation limitation was that the range was limited to 23 miles (37 km), forcing the Japanese military to use lumbering Mitsubishi G4N (Betty) bombers as “carriers” (the Ohka the so-called "parasite aircraft") with the rockets released from under-slung assemblies when within range.  As the Ohka was originally conceived, with a range of 80 miles (130 km), as a delivery system to the point of release that may have worked but such was the demand on the designers to provide the highest explosive payload, thereby limiting both the size of the rocket and the fuel carried, restricting the maximum speed to 276 mph (445 km/h) which would have made the barely maneuverable little rockets easy prey.

Yokosuka MXY-7 Ohka.

During the war, Japan produced more Mitsubishi G4Ms than any other bomber and its then remarkable range (3130 miles (5037 km)) made it a highly effective weapon early in the conflict but as the US carriers and fighters were deployed in large numbers, its vulnerabilities were exposed: the performance was no match for fighters and it was completely un-armored without even self-sealing fuel tanks, hence the nick-name “flying lighter” gained from flight crews.  However, by 1945 Japan had no more suitable aircraft available for the purpose so the G4M was used as a carrier and the losses were considerable, an inevitable consequence of having to come within twenty-odd miles of the US battle-fleets protected by swarms of fighters.  It had been planned to develop a variant of the much more capable Yokosuka P1Y (Ginga) (as the P1Y3) to perform the carrier role but late in the war, Japan’s industrial and technical resources were stretched and P1Y development was switched to night-fighter production, desperately needed to repel the US bombers attacking the home islands.  Thus the G4M (specifically the G4M2e-24J) continued to be used.

A captured Japanese Yokosuka MXY-7 Ohka (Model 11), Yontan Airfield, April 1945.

Watched by Luftwaffe chief Reichsmarschall Hermann Göring (1893-1946), Adolf Hitler (1889-1945) awards test pilot Hanna Reitsch the Iron Cross (2nd class), Berlin, March 1941 (left); she was later (uniquely for a woman), awarded the 1st-class distinction.  Conceptual sketch of the modified V1 flying bomb (single cockpit version) (right).

The idea of suicide missions also appealed to some Nazis (predictably most popular among those not likely to find themselves at the controls.  The idea had been discussed earlier as a means of destroying the electricity power-plants clustered around Moscow but early in 1944, the intrepid test pilot Hanna Reitsch (1912–1979) suggested to Adolf Hitler (1889-1945; German head of government 1933-1945 & of state 1934-1945) a suicide programme as the most likely means of hitting strategic targets.  Ultimately, she settled on using a V1 flying bomb (the Fieseler Fi 103R, an early cruise missile) to which a cockpit had been added, test-flying it herself and even mastering the landing, some feat given the high landing speed.  As a weapon, assuming a sufficient supply of barely-trained pilots, it would probably have been effective but Hitler declined to proceed, feeling things were not yet sufficiently desperate.  The historic moment passed.