MARINE CORPS BASE HAWAII (July 2, 2016) U.S. Marines teach Australian soldiers their patrolling techniques and improvised explosive device search tactics. Exercise Rim of the Pacific 16 is the world's largest international maritime exercise, and provides a unique training opportunity that helps participants foster and sustain 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 video by Cpl. Isaac Ibarra)