During the Portuguese Overseas War (1961-1974), all military air assets were part of the Air Force. These were employed both in independent operations and in cooperation with the land and naval forces, under the coordination of the joint military commands. The Air Force was equipped with assets oriented for the counter-insurgency, including new helicopters that were used to perform joint helicopter operations involving Commandos and Paratroopers (these then being part of the Air Force). Occasionally, the Air Force established detachments of cooperation that operated under the command of Army units.