• MOSCOW, RUSSIA - MARCH 21: Russian President Vladimir Putin flanked by Upper House Speaker Valentina Matviyenko (L) and State Duma Speacker Sergei Naryshkin (R) signs final decree completing annexation of Crimea at the Kremlin on March 21, 2014 in Moscow, Russia. Putin completed the legal process of making Crimea part of Russia. Credit Sasha Mordovets/Getty Images

    Ukraine's Prime Minister signed a deal with the European Union on Friday, in a show of solidarity by the bloc as Russian President Vladimir Putin finalized Russia's annexation of Crimea.

    LAST UPDATE : Mar 21, 2014, 12:14 PM EDT
  • BRUSSELS, BELGIUM - MARCH 06: Ukraine Prime Minister, Arseniy Yatseniuk speaks to the media during a meeting to discuss the situation in Ukraine at the European Union Council Building on March 6, 2014 in Brussels, Belgium. The EU leaders are attending an emergency summit in Brussels to decide how they should respond to the deployment of Russian troops in the Crimea. Russian forces have been on the ground in the Crimea since the change of government in Kiev when President Viktor Yanukovych was forced from po

    European leaders are struggling to come up with a unified response over the annexation of Crimea by Russian President Vladimir Putin.

    LAST UPDATE : Mar 19, 2014, 2:32 PM EDT
  • Colonel Yuli Mamchor (C), commander of the Ukrainian military garrison at the Belbek airbase, leads his unarmed troops bearing the Ukrainian and regiment flags to retake the Belbek airfield from soldiers under Russian command in Crimea on March 4, 2014 in Lubimovka, Ukraine.

    Vladimir Putin said there is no need yet to send Russian troops into Ukraine, but he has not ruled out doing so. Russia reserves the right to use "all means" to protect citizens in Ukraine, he said.

    LAST UPDATE : Mar 04, 2014, 10:12 AM EST
  • Heavily-armed troops displaying no identifying insignia and who were mingling with local pro-Russian militants stand guard outside a local government building on March 2, 2014 in Simferopol, Ukraine.

    The seizure of Crimea by Russian forces, as well as Russia's parliamentary approval for larger intervention, have created a potentially disastrous situation. 

    LAST UPDATE : Mar 02, 2014, 8:41 AM EST