Ukrainian Prime Minister Arseniy Yatsenyuk says "we are on the brink of disaster" and he urged Russian President Vladimir Putin to pull back his military from the country.
Pro-Russian irregulars form self defense units in Crimea's capital, Simferopol, Ukriane, March 2, 2014. (Elizabeth Arrott/VOA).
Ukrainian sailors prepare their anti-submarine ship "Ternopil" in the Black Sea port of Sevastopol, Crimea, Ukraine, March 2, 2014.
Ukraine mobilised on Sunday for war and called up its reserves, after Russian President Vladimir Putin threatened to invade in the biggest confrontation between Moscow and the West since the Cold War. Pictured here is a Zubr Class air cushion landing craft at the port of the Crimean port city of Feodosiya, Ukraine, March 2, 2014.
Unidentified gunmen guard Ukraine's infantry base in Privolnoye, Ukraine, March 2, 2014.