MARINE CORPS BASE CAMP PENDLETON, Calif. – A Mexican

MARINE CORPS BASE CAMP PENDLETON, Calif. – A Mexican sailor uses duct tape to secure bricks of TNT to a fence stake to make a Field-expedient Bangalore, an explosive charge packed into a tube or fixed to an object, aboard Marine Corps Base Camp Pendleton, Calif., July 14, 2016. Marines were sharing their basic breach-and-clear tactics with Mexican service members during Rim of the Pacific 2016 in order to build trust and strengthen future coalition-force cohesion. Twenty-six nations, more than 40 ships and submarines, more than 200 aircraft and 25,000 personnel are participating in RIMPAC from June 30 to Aug. 4, in and around the Hawaiian Islands and Southern California. The world's largest international maritime exercise, RIMPAC provides a unique training opportunity that helps participants foster and sustain the cooperative relationships that are critical to ensuring the safety of sea lanes and security on the world's oceans. RIMPAC 2016 is the 25th exercise in the series that began in 1971. (U.S. Marine Corps photo by Pfc. Nadia J. Stark/Released)