190619-N-YA579-7451 IWAKUNI, Japan (June 19, 2019) Seabees assigned to Naval Mobile Construction Battalion (NMCB) 4 install block at the unit enclosure project on Marine Corps Air Station Iwakuni. NMCB-4 is forward-deployed throughout the Indo-Pacific region ready to support major combat operations, humanitarian assistance and disaster relief and to provide general engineering and civil support to U.S. and joint forces. (U.S. Navy photo by Builder Constructionman Stephen Tritsch/Released)