Cordon

Cordon (pronounced kawr-dn)

(1)  A line of police, sentinels, military posts, warships, etc., enclosing or guarding an area.

(2) A cord or braid worn for ornament or as a fastening.

(3) A ribbon worn usually diagonally across the breast as a badge of a knightly or honorary order.

(4) A projecting course of stones at the base of a parapet.

(5) The coping of a scarp.

(6) In architecture, a stringcourse, especially one having little or no projection.

(7) A cut-stone riser on a stepped ramp or the like.  Also called a string course or belt course, an ornamental projecting band or continuous moulding along a wall.

(8) In horticulture, a fruit tree or shrub trained to grow along a support or a series of such supports.  Tree consists of a single stem bearing fruiting spurs, produced by cutting back all lateral branches

(9) To surround or blockade with or as with a cordon (usually followed by off).

(10) In cricket, the arc of fielders on the off side, behind the batsman; the slips and gully (but not the more distant third man).

1400–1450: Borrowed by Middle English from Middle French cordon (ribbon), diminutive of the Old French corde (string), derived from the Classical Latin chorda (gut) and Ancient Greek (Doric) χορδή or khordḗ (string of gut, cord, string of a lyre).

The meaning "cord or ribbon worn as an ornament” dates from the 1560s.  Sense of "a line of people or things guarding something" is from 1758.  The form cordon sanitaire (sanitary cordon), first noted in 1857, was a public health measure in the French Second Empire (Napoleon III), a guarded line between infected and uninfected districts during outbreaks of infectious disease.

The Cordon Sanitaire in Geopolitics

Originally a public health measure to contain the spread of infectious diseases, French Prime Minister Georges Clemenceau (1841–1929; Prime Minister of France 1906-1909 & 1917-1920) conjured the phrase as a geopolitical metaphor in March 1919.  He urged the newly independent border-states, stretching from Finland to the Balkans (also called limitrophe states) that had seceded from the Russian Empire (and its successor the USSR) to form a defensive union and thus quarantine Western Europe from the spread of communism.

The concept evolved and was in its most politically and geographically defined form during the cold war when buffer states gave shape to the so-called iron curtain between east and west.  Winston Churchill (1875-1965; UK Prime Minister 1940-1945 & 1951-1955) didn’t invent the phrase but made it famous in his address at Fulton, Missouri in March 1946 when he noted that “From Stettin in the Baltic to Trieste in the Adriatic an iron curtain has descended across the Continent.”  This was the opposite of Clemenceau’s vision of protecting west from east; instead the buffer-states existed to protect the USSR from any prospect of another invasion from a resurgent Germany, a dominant theme in early post-war Soviet foreign policy.

Comrade Stalin's Cordon Sanitaire: the Cold-War Buffer States

The buffer states were a construct of Comrade Stalin (1878–1953; leader of the USSR, 1924-1953), his words backed first by four-hundred divisions and later the Soviet nuclear arsenal.  They lasted more than forty years, the system beginning to fracture only in the mid-1980s when USSR Communist Party General Secretary Mikhail Gorbachev (b 1931; leader of the USSR, 1985-1991) retreated from adherence to the Brezhnev (Leonid Brezhnev; 1906–1982; leader of the USSR, 1964–1982) Doctrine which held that if socialism was threatened in any state, other socialist governments had an obligation to intervene to preserve it.  Gorbachev initiated the policies of glasnost (openness) and perestroika (economic restructuring), both of which exposed the contradictions inherent in the Soviet system.  By 1989, long an economic failure, the eastern bloc began politically to crumble and a wave of revolutions began.  In 1991, the USSR was dissolved.

Crowd control cordon creation: Metal outside & the velvet rope within, Mean Girls Premiere, Los Angeles, April 2004.

Temporary cordons are often not sufficiently robust physically to act as an effective barrier against a breach induced even by mild force and rely on their symbolic value in the same way the red, amber & green traffic signals controlling intersections usually achieve the desired effect even though pieces of illuminated colored plastic inherently can't stop a car.  Respect for them (coupled with a fear of the consequences if flouted) is what makes them effective.  The cordoning of crowds at events often works the same way.  While facilities such as stadiums or race tracks usually have permanent fences or other structures difficult to cross, ad-hoc events in spaces intended for other purposes use relatively flimsy temporary barriers which wouldn't withstand much pressure and rely on the cooperation (and again, fear of consequences) of those cordoned off.  Outside, cordons typically are created with movable metal or plastic modular fencing while inside, the favored form is the "velvet rope", strung between stanchions (although lengths of plastic chain are sometimes seen).  These have the advantage of being able to re-configure a cordon at short notice and when not in use, demand little space to store.