Adm. Jonathan W. Greenert, the Chief of Naval Operations (left), speaks With Capt. Paul Whitescarver, Operations Officer, COMSUBLANT (right) while the nuclear-powered attack submarine USS New Mexico (SSN 779) sits moored to the ice in the background during Ice Exercise (ICEX) 2014. ICEX 2014 is a U.S. Navy exercise highlighting submarine capabilities in an arctic environment. (U.S. Navy photo by Mass Communication Specialist 2nd Class Joshua Davies/Released)