US Ambassador to Japan makes first visit to MCAS Iwakuni, Iwakuni City - Ambassador William Hagerty, right, U.S. ambassador to Japan, takes a tour of a Japan Maritime Self-Defense Force (JMSDF) US-1A seaplane at Marine Corps Air Station (MCAS) Iwakuni, Japan, Nov. 30, 2017. Ambassador Hagerty visited MCAS Iwakuni officially for the first time since arriving in Japan earlier this year. (U.S. Marine Corps photo Lance Cpl. Stephen Campbell)