Images from Crimea

A Ukrainian soldier walks past Russian soldiers marching to their camp outside a military base in Perevalne, Crimea, March 21, 2014.

Uniformed men, believed to be Russian troops, march outside a military base in Perevalnoye, near the Crimean city of Simferopol, March 21, 2014.

Ukrainian Navy sailors raise the Ukrainian flag on the Ukrainian navy command ship Slavutych as it is blocked by two Russian ships at the Crimean port of Sevastopol, March 21, 2014.

Russian sailors walk near the Ukrainian ship Slavutich in Sevastopol, March 20, 2014.

The Ukrainian ship Slavutich is seen blocked by two Russian ships at the harbor in Sevastopol, March 20, 2014.

A Ukrainian soldier walks near a closed entrance gate at an airforce base in the Crimean town of Belbek, March 20, 2014.

Workers put up a new sign reading "State Council of the Crimean Republic" at the parliament building in Simferopol, March 19, 2014.

ျပည္ေထာင္စုလႊတ္ေတာ္တြင္း ဖြဲ႔စည္းပံုျပင္ေရး မဲခြဲဆံုးျဖတ္။ (ဇြန္ ၂၅၊ ၂၀၁၅)

A Ukrainian naval officer passes by armed men, believed to be Russian servicemen, as he leaves the naval headquarters in Sevastopol, March 19, 2014.

A member of a pro-Russian self-defense force takes down a Ukrainian Navy flag, left, as another raises the Russian flag at Ukrainian Navy headquarters in Sevastopol, Crimea, March 19, 2014.