Obama warns Russia as troop movements raise concerns
1 of 1
Unidentified gunmen wearing camouflage uniforms guard the entrance to the military airport at the Black Sea port of Sevastopol in Crimea, Ukraine, Friday.
Photos: Submarine Aloha Ceremony: November, 25
Photos: Island Images: November 2014, part 2
Photos: Basketball: Hawaii vs. UNLV, Nov. 23
More Photo Galleries »