Navy Diver 2nd Class Ryan Smith, assigned to Mobile Diving and Salvage Unit (MDSU) 2, Company 2-2, conducts a recompression chamber drill. MDSU 2 is assigned to Commander, Task Group 56.1, promoting mine countermeasure, explosive ordnance disposal, salvage-diving and force protection for the U.S. 5th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 3rd Class Jumar T. Balacy/Released)