U.S. Secretary of Defense Leon E. Panetta (left) shakes hands with Australian Defense Minister Stephen Smith (right) as U.S. Ambassador to NATO Ivo Daalder (second from left) and NATO Secretary-General Anders Fogh Rasmussen look on during a round-table meeting of NATO defense ministers at the alliance's headquarters in Brussels on Wednesday, Oct. 10, 2012. (AP Photo/Virginia Mayo)

Photo by: Virginia Mayo

U.S. Secretary of Defense Leon E. Panetta (left) shakes hands with Australian Defense Minister Stephen Smith (right) as U.S. Ambassador to NATO Ivo Daalder (second from left) and NATO Secretary-General Anders Fogh Rasmussen look on during a round-table meeting of NATO defense ministers at the alliance's headquarters in Brussels on Wednesday, Oct. 10, 2012. (AP Photo/Virginia Mayo)