The 430th Expeditionary Electronic Combat Squadron is an active United States Air Force unit. It is assigned to the 451st Expeditionary Operations Group and stationed at Kandahar Air Base, Afghanistan.
The 430th Fighter Squadron, nicknamed "The Backdoor Gang", was first activated during World War II as part of the 474th Fighter Group and served in the European Theater of Operations, where it earned a Distinguished Unit Citation and the Belgian Fourragère for its actions in combat. It remained in Europe after V-E Day, returning to the United States, where it was inactivated at the Port of Embarkation in December 1945.
The squadron was reactivated as the 430th Fighter-Bomber Squadron in 1952 as part og the 474th Fighter Bomber Wing and later the 474th Fighter Bomber Group, when it replaced an Air National Guard squadron in Japan. It again saw combat in the Korean War, earning another Distinguished Unit Citation and a Republic of Korea Presidential Unit Citation. The Squadron returned to the United States in 1954.