170803-N-QL164-007 SINGAPORE (Aug. 3, 2017) Scott Silk, deputy director of operations for the Singapore Area Coordinator (SAC), is taken to the ground at gunpoint by Installations Auxiliary Police Force officer Imran Khan during a security drill as part of Exercise Citadel Pacific 2017. The annual exercise enhances the training, readiness and capabilities of Navy security forces to respond to threats to Navy installations and units. (U.S. Navy photo by Marc Ayalin/Released)