JAVA SEA (May 30, 2010) - Damage Controlman 1st Class Christopher Szell, from USS Tortuga (LSD 46), explains how the oxygen tank on a self contained breathing apparatus (SCBA) works to a group of Tentara Nasional Indonesia - Angkatan Laut (TNI-AL) sailors during the at-sea phase of Naval Engagement Activity (NEA) Indonesia 2010. In its 16th year, NEA is part of the Cooperation Afloat Readiness and Training (CARAT) series of bilateral exercises held annually in Southeast Asia to strengthen relationships and enhance force readiness. (U.S. Navy photo by Mass Communication Specialist 2nd Class David Brandenburg)