151110-N-EI510-259 NORFOLK, Va. (Nov. 10, 2015) Secretary of State John Kerry addresses the crew of the USS San Antonio (LPD 17) during a tour of the ship. Kerry visited the San Antonio to celebrate the U.S. Marine Corps' birthday and receive an environmentally-focused tour of the ship. (U.S. Navy photo by Mass Communication Specialist 3rd Class Scott Michael Barnes/Released)