The United States Air Force's 40th Air Expeditionary Wing (40 AEW) was an Air expeditionary unit located at Diego Garcia, in the Indian Ocean, from 2001 to c. 2006.Its predecessor unit, the United States Army Air Forces 40th Bombardment Group (40th BG) was part of Twentieth Air Force during World War II. The unit served primarily in the Pacific Ocean theater and China Burma India Theater of World War II.