Builder 2nd Class Nate Emmett with Underwater Construction Team Two (UCT TWO) performs maintenance on a dive helmet prior to commencing dive operations during diver training aboard USAV Matamoros (LCU-2026). Diver training is a two-week, joint training evolution between Under Water 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 3rd Class Tyler Thompson/Released)