NATO Secretary General Anders Fogh Rasmussen, left, shakes hands with Ukraine's acting Defense Minister Oleksandr Oliinyk, right, prior to the start of a meeting of NATO defense ministers and NATO-Ukraine Commission at NATO headquarters in Brussels on Thursday, Feb. 27, 2014. NATO defense ministers, in a second day of meetings, will discuss the situation in Ukraine and Afghanistan. (AP Photo/Geert Vanden Wijngaert)
NATO Secretary General Anders Fogh Rasmussen, left, talks with Ukraine's acting Defense Minister Oleksandr Oliinyk, right, prior to the start of a meeting of NATO defense ministers and NATO-Ukraine Commission at NATO headquarters in Brussels on Thursday, Feb. 27, 2014. NATO defense ministers, in a second day of meetings, will discuss the situation in Ukraine and Afghanistan. (AP Photo/Geert Vanden Wijngaert)
U.S. Secretary of Defense Chuck Hagel addresses the media after a meeting of NATO defense ministers at NATO headquarters in Brussels on Thursday, Feb. 27, 2014. NATO defense ministers, in a second day of meetings, discussed the situation in Ukraine and Afghanistan. (AP Photo/Geert Vanden Wijngaert)
U.S. Secretary of Defense Chuck Hagel addresses the media after a meeting of NATO defense ministers at NATO headquarters in Brussels on Thursday, Feb. 27, 2014. NATO defense ministers, in a second day of meetings, discussed the situation in Ukraine and Afghanistan. (AP Photo/Geert Vanden Wijngaert)
U.S. Secretary of Defense Chuck Hagel addresses the media after a meeting of NATO defense ministers at NATO headquarters in Brussels on Thursday, Feb. 27, 2014. NATO defense ministers, in a second day of meetings, discussed the situation in Ukraine and Afghanistan. (AP Photo/Geert Vanden Wijngaert)