Armed pro-Russian activists stand outside the Ukrainian regional administration building which they seized in the eastern Ukrainian town of Slovyansk, Ukraine on April 14, 2014 in Slovyansk, Ukraine. Tension has been rising in Ukraine, with pro-Russian activists occupying buildings in more eastern towns and a Russian fighter jet rmaking passes over a U.S. warship in the Black Sea. (Photo by Ilia Pitalev/Kommersant Photo via Getty Images)
