Navy Capt. Robert Hudson, Nuclear Power Training Unit commanding officer, conducts a re-enlistment ceremony with Sailors assigned to NPTU Jan. 30, 2015, at Patriots Point Naval & Maritime Museum – Charleston, S.C. More than 40 Sailors re-enlisted into the U.S. Navy after a graduation ceremony. NPTU Sailors classes 1402 and 1403 held their graduation from NPTU on the same day as the re-enlistment. (U.S. Air Force Photo / Senior Airman Tom Brading)