Navy Petty Officer 1st Class Matt Ramirez, a construction mechanic assigned to Underwater Construction Team 2, checks the bottle pressures for Navy Seaman Recruit Adam Porras and a Thai sailor during a dive at Thung Prong Pier in Sattahip, Thailand, as part of the Cobra Gold exercise, Feb. 15, 2018. This 37th iteration of Cobra Gold is the first multilateral exercise between U.S., Thai and South Korean underwater construction teams. Navy photo by Petty Officer 2nd Class Alfred A. Coffield