Builder 2nd Class David Madmon, assigned to Underwater Construction Team Two (UCT TWO), has his Kirby Morgan 37 dive helmet tested for leaks before conducting surface supplied operations during diver training aboard USAV Matamoros (LCU-2026). Diver training is a two-week, joint training evolution between Underwater Construction Team One and UCT TWO designed to reinforce standard operating procedures, qualify personnel, maintain proficiency, and evaluate dive protocol during scuba, surface supplied and recompression chamber operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Nicholas S. Tenorio/Released)