170601-N-KR702-061 PHILIPPINE SEA (July 2, 2017) Sailors remove the barrel of a .50-caliber machine gun during a live-fire exercise aboard the aircraft carrier USS Nimitz (CVN 68) in the Philippine Sea. Nimitz is on an underway period in the U.S. 7th Fleet area of operations. The U.S. Navy has patrolled the Indo-Asia Pacific routinely for more than 70 years promoting regional peace and security. (U.S. Navy photo by Mass Communication Specialist 2nd Class Holly L. Herline/Released)