From left, U.S. Air Force Staff Sgt. Renford Forbes, a loadmaster with the 36th Airlift Squadron, and Capt. Robert Tong, a flight surgeon with the 36th Medical Group, release a low-cost, low-altitude airdrop bundle from a C-130 Hercules aircraft near the island of Ifalik, Federated States of Micronesia, during the 62nd annual Operation Christmas Drop Dec. 10, 2013. Christmas Drop started in 1952 as a training mission and has since become the longest-running Department of Defense mission in full operation as well as the longest-running humanitarian airlift in the world.