U.K Secretary of State for Defense Michael Fallon, left, U.S. Defense Secretary Ash Carter, German Defense Minister Ursula von der Leyen and NATO Secretary General Jens Stoltenberg chat before the start of the meeting of the North Atlantic Council at NATO headquarters in Brussels, Oct. 8, 2015. Carter is on a five-day trip to Europe to attend the NATO Defense Ministerial in Brussels, and meet with counterparts in Spain, Italy and the United Kingdom. DoD photo by U.S. Army Sgt. 1st Class Clydell Kinchen