U.S. Deputy Defense Secretary Bob Work shakes hands with Arild Eikeland, Norwegian director of transatlantic European security defense policy, as he arrives in Oslo, Norway, Sept. 7, 2015. Norwegian Air Force Col. Paul Havardsoernsen, left, and U.S. Navy Capt. Scott Swehla, the naval defense attache for the U.S. Embassy in Norway, participated in welcoming Work, who is on a weeklong trip that includes stops in Iceland and the United Kingdom. DoD photo by Glenn Fawcett