Bellows Air Force Station (Bellows Field) is a United States military reservation located in Waimanalo, Hawaii. Once an important air field during World War II, the reservation now serves as a military training area and recreation area for active and retired military and civilian employees of the Department of Defense. Bellows AFS is operated by Detachment 2, 18th Force Support Squadron of the 18th Mission Support Group based at Kadena Air Force Base, Okinawa, Japan.