Korean War POW exchanges, Operation Big Switch (1953)
Under the Korean armistice, the United Nations Command and North Korea-China exchanged about 75,000 communist prisoners for roughly 12,700 UN prisoners, including 3,597 Americans. The swaps ran for six weeks at Panmunjom.
Closed out the active combat phase of the Korean War.
The Korean armistice has held for over 70 years without a peace treaty; the prisoner mechanism was the deliverable that stuck.
Historical template for prisoner exchange as the only durable piece of an otherwise frozen conflict. The Russia-Ukraine swap may end up playing the same role: a humanitarian channel that outlasts the political settlement nobody can write.
