Being on deployment with the U.S. Navy can mean months at sea, and limited options for dealing with stress. But on a handful of ships theres a special option on board, and it comes in the form of a four-legged crew member.Commander Ike is a 5-year-old yellow lab and an expeditionary facility dog assigned to the USS Wasp. His duty is to help sailors execute their mission, and sometimes that simply means giving sailors a taste of home.He's here fo…