During the Korean War, a force of roughly 30,000 United Nations troops, primarily US Marines nicknamed the 'Chosin Few', was unexpectedly surrounded and encircled by 120,000 Chinese soldiers in the rugged mountains surrounding the Chosin Reservoir, North Korea. Faced with temperatures dropping to minus 36 degrees, which froze weapons, plasma, and caused severe frostbite, the marines executed an agonizing, 78-mile fighting retreat down a narrow mountain road to the port of Hungnam. Breaking through multiple Chinese roadblocks while hauling their wounded and dead, the troops displayed monumental battlefield discipline and physical endurance to prevent their total annihilation.

The harrowing retreat from Chosin Reservoir became an essential, iconic epic of modern military resilience, extensively documented in mid-century American memoirs, oral histories, and stark commemorative poetry. The extreme environmental suffering—where soldiers fought and froze in a bleak, unyielding landscape—provided modern combat poetry with a chilling, realistic vocabulary that stripped away any remaining romantic myths of modern mechanized warfare.