U.S. Navy Steel Worker 1st Class Jesse Hamblin, with Underwater Construction Team (UCT) 2, demonstrates the use of a drill during a concrete pile structural integrity test for military divers.

PEARL HARBOR (Jul. 13, 2016) U.S. Navy Steel Worker 1st Class Jesse Hamblin, with Underwater Construction Team (UCT) 2, demonstrates the use of a drill during a concrete pile structural integrity test for military divers with the Royal Australian Navy and the U.S. Army and Coast Guard as part of a pier maintenance training-mission led by UCT 2 during Rim of the Pacific 2016. 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. Navy combat camera photo by Mass Communication Specialist 1st Class Charles E. White) File# 160713-N-GO855-061