Ukrainian officers leave as Russian soldiers stand guard at the Ukrainian navy headquarters in the Crimean city of Sevastopol on March 19, 2014.  Ukrainian servicemen filed out of navy headquarters in Sevastopol on Wednesday with tears in their eyes after the base was seized by pro-Moscow militants, Russian troops and Cossack forces.  The assault began when some 200 unarmed militants -- some of them in balaclavas -- sawed through a fence and overran the base while the Ukrainian servicemen barricaded themselves inside.  AFP PHOTO/  VIKTOR DRACHEV        (Photo credit should read VIKTOR DRACHEV/AFP via Getty Images)