180904-N-SB299-212 SAN DIEGO (Sept. 4, 2018) Adm. John C. Aquilino, commander of U.S. Pacific Fleet, and Vice Adm. Richard A. Brown, commander of Naval Surface Forces, observe virtual training scenarios at the Center for Surface Combat Systems Littoral Combat Ship Training Facility onboard Naval Base San Diego, Sept. 4, 2018. The facility trains individual Sailors and crews to operate and maintain their ships using in-class and simulator instruction for some of the most challenging missions they may face at sea. (U.S. Navy photo by Mass Communication Specialist 2nd Class Alex Millar/Released)