US Air Force (USAF) F-16C Fighting Falcon fighter aircraft crewchiefs from the 36th Aircraft Maintenance Unit (AMU), Osan Air Base (AB), Korea (ROK), prepare to launch jets during Exercise COMMANDO SLING 04-3 at Paya Lebar Air Base (AB), Singapore (SGP). Six F-16C Fighting Falcon fighter jets from the 36th Fighter Squadron (FS), Osan AB, ROK, are part of the one-month training with Royal Singapore Air Force (RSAF). The goal of the exercise is to provide a US presence in Southeast Asia and realistic dissimilar air combat training (DACT) for forces of both nations