U.S. Navy Diver 2nd Class Anthony Russo, left, assigned to the submarine tender USS Emory S. Land (AS 39), supervises Navy Diver 2nd Class Nolan Tombler as he prepares to submerge during a ship maintenance dive aboard the guided missile submarine USS Georgia (SSGN 729) Jan. 7, 2014, at Naval Support Facility Diego Garcia, British Indian Ocean Territory.