Fleet ocean tug USNS Catawba (T-ATF 168) lowers an unmanned underwater vehicle (UUV) into the water. Catawba is assigned to Commander, Task Group 56.1, promoting maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility. (U.S. Navy photo by Mass Communication Specialist 3rd Class Michael Scichilone/Released)