Balkan Air Rescue
Operation Halyard, known in Serbian as Operation Air Bridge, was an Allied airlift operation behind Axis lines during World War II. In July 1944, the Office of Strategic Services (OSS) drew up plans to send a team to the Chetniks force led by General Draža Mihailović in the German-occupied Territory of the Military Commander in Serbia for the purpose of evacuating Allied airmen shot down over that area.