170622-N-AX638-0031 PACIFIC OCEAN (June 21, 2017) The aircraft carrier USS Nimitz (CVN 68) and the Ticonderoga-class guided-missile cruiser USS Princeton (CG 59) conduct a replenishment-at-sea with the fleet replenishment oiler USNS Yukon (T-AO 202). Nimitz and Princeton are on an underway 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 Tyler Preston/Released)