Ukraine's Prime Minister Arseniy Yatsenyuk speaks during a media conference at NATO headquarters in Brussels on Thursday, March 6, 2014. Yatsenyuk is in Brussels to meet with EU heads of state and NATO officials to discuss the current situation in Ukraine. (AP Photo/Eric Vidal)
Ukraine's Ambassador to NATO Ihor Dolhov adjusts the microphones prior to speaking during a media conference at NATO headquarters in Brussels on Sunday, March 2, 2014. NATO is called emergency talks on Sunday regarding the escalating crisis in Ukraine. (AP Photo/Virginia Mayo)