Unidentified gunmen wearing camouflage uniforms guard the entrance to the military airport at the Black Sea port of Sevastopol in Crimea, Ukraine
Unidentified gunmen wearing camouflage uniforms guard the entrance to the military airport at the Black Sea port of Sevastopol in Crimea, Ukraine ASSOCIATED PRESS
Unidentified gunmen wearing camouflage uniforms guard the entrance to the military airport at the Black Sea port of Sevastopol in Crimea, Ukraine ASSOCIATED PRESS

Obama talks tough to Russia about Ukraine and Crimea; events unclear

February 28, 2014 8:03 PM