It is assigned to the Air Force Reserve Command , Fourth Air Force , and is based at Westover Air Reserve Base , Massachusetts .
The 439th Airlift Wing ( 439 AW ) is an active United States Air Force Reserve unit .
439th Airlift Wing is assigned to the Air Force Reserve Command , Fourth Air Force , and is based at Westover Air Reserve Base , Massachusetts .
The 439th Airlift Wing ( 439 AW ) is an active United States Air Force Reserve unit .