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A prisoner exchange or prisoner swap is a deal between opposing sides in a conflict to release prisoners. These may be prisoners of war, spies, hostages, etc. Sometimes dead bodies are involved in an exchange.
The Times's C.J. Chivers travels with an antigovernment fighting group calling itself the Lions of Tawhid as it prepares to mount an attack on a regime checkpoint using a truck bomb. The Lions are fighting in and around Aleppo, where the war for S...