During World War II the airfield was known as Blythe Army Air Field and was used by the United States Army Air Forces. The use of the site began on May 14, 1942. Blythe AAB was built for the I Troop Carrier Command but was given up by that command, without ever occupying it, to the Fourth Air Force as part of the United States Army Desert Training Center (DTC) was established by General George S. Patton shortly after the outbreak of the war, Blythe was the only air field with construction already under way. For six months, the air field served as the sole air support base for the Army maneuvers under way at the DTC.