Ukrajina

Russian soldiers fire warning shots at the Belbek air base, outside Sevastopol, Ukraine, March 4, 2014.

Ukrainian officers arrive for talks as Russians guard at the Belbek air base, outside Sevastopol, Ukraine, March 4, 2014.

A Russian soldier marches as he and comrades block the Ukrainian infantry base in Perevalne, Ukraine, March 4, 2014.

Russian military armored personnel carriers drive from Sevastopol to Simferopol, Crimea, Ukraine, March 4, 2014.

Ukrainian officers march at the Belbek air base, outside Sevastopol, Ukraine, March 4, 2014.

Russian servicemen stand on duty near a map of the Crimea region near the city of Kerch, March 4, 2014.

U.S.Secretary of State John Kerry lays roses atop the Shrine of the Fallen in Kyiv, March 4, 2014.

U.S. Secretary of State John Kerry shakes hands with a protester at the barricades in Kyiv, March, 4, 2014.

Ukrainian opposition leader Yulia Tymoshenko greets U.S. Assistant Secretary of State Victoria Nuland during their meeting in Kyiv, March 4, 2013.

A woman passes by Ukrainian recruits receiving military instructions in Kyiv's Independence Square, March 4, 2014.

Ukrainian recruits receive instructions from a commander in a recruitment self defense quarter at Kyiv's Independence Square, March 4, 2014.