Ukrainian soldiers walk inside a military base in Perevalnoye, near the Crimean city of Simferopol March 21, 2014. Russia’s Upper House of Parliament unanimously approved a treaty on annexing Ukraine’s Crimea region on Friday, clearing the way for President Vladimir Putin to sign it into law. REUTERS/Shamil Zhumatov (UKRAINE – Tags: POLITICS MILITARY) – RTR3I0DB