U.S. Navy Gunner's Mate 2nd Class Caleb Sonflieth, from Milwaukee, Oregon (USA), fires the MK 38 25mm machine gun system during a live-fire exercise aboard the Arleigh Burke-class guided-missile destroyer USS "Sterett" (DDG-104) in the Arabian Gulf. "Sterett" was deployed in the U.S. 5th Fleet area of responsibility supporting Operation Inherent Resolve, strike operations in Iraq and Syria as directed, maritime security operations, and theater security cooperation efforts in the region.