171208-N-LC642-075 PACIFIC OCEAN (Dec. 8, 2017) U.S. Navy Sailors operate an M240B machine gun as part of a training exercise aboard the aircraft carrier USS Nimitz (CVN 68), Dec. 8, 2017, in the Pacific Ocean. The Nimitz Carrier Strike Group is on a regularly scheduled deployment to the Western Pacific. The U.S. Navy has patrolled the Indo-Asia-Pacific region routinely for more than 70 years promoting peace and security. (U.S. Navy photo by Mass Communication Specialist 3rd Class Emily Johnston/Released)