A Russian convoy moves from Sevastopol to Sinferopol in the Crimea, Ukraine, Sunday, March 2, 2014. A convoy of hundreds of Russian troops headed toward the regional capital of Ukraine's Crimea region on Sunday, a day after Russia's forces took over the strategic Black Sea peninsula without firing a shot. The new government in Kiev has been powerless to react. Ukraine's parliament was meeting Sunday in a closed session. (AP Photo/Darko Vojinovic)

A Russian convoy moves from Sevastopol to Sinferopol in the Crimea, Ukraine, Sunday, March 2, 2014. A convoy of hundreds of Russian troops headed toward the regional capital of Ukraine's Crimea region on Sunday, a day after Russia's forces took over the strategic Black Sea peninsula without firing a shot. The new government in Kiev has been powerless to react. Ukraine's parliament was meeting Sunday in a closed session. (AP Photo/Darko Vojinovic)

Armed men in military fatigues use a truck to block the road to the Ukrainian military airport of Belbek, near Sevastopol, on March 2, 2014. Ukraine's border guard service said on Saturday that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. The dramatic escalation in what threatens to blow up into the worst crisis between Moscow and the West since the Cold War came as pro-Kremlin forces seized key government buildings in Crimea and were blockading military bases on the strategic Black Sea peninsula. AFP PHOTO/ VASILIY BATANOV

Armed men in military fatigues use a truck to block the road to the Ukrainian military airport of Belbek, near Sevastopol, on March 2, 2014. Ukraine's border guard service said on Saturday that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. The dramatic escalation in what threatens to blow up into the worst crisis between Moscow and the West since the Cold War came as pro-Kremlin forces seized key government buildings in Crimea and were blockading military bases on the strategic Black Sea peninsula. AFP PHOTO/ VASILIY BATANOV

Armed men in military fatigues guard an entrance of the Ukrainian military airport of Belbek, near Sevastopol, on March 2, 2014. Ukraine's border guard service said on Saturday that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. The dramatic escalation in what threatens to blow up into the worst crisis between Moscow and the West since the Cold War came as pro-Kremlin forces seized key government buildings in Crimea and were blockading military bases on the strategic Black Sea peninsula. AFP PHOTO/ VASILIY BATANOV

Armed men in military fatigues guard an entrance of the Ukrainian military airport of Belbek, near Sevastopol, on March 2, 2014. Ukraine's border guard service said on Saturday that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. The dramatic escalation in what threatens to blow up into the worst crisis between Moscow and the West since the Cold War came as pro-Kremlin forces seized key government buildings in Crimea and were blockading military bases on the strategic Black Sea peninsula. AFP PHOTO/ VASILIY BATANOV

Armed men in military fatigues guard the Ukrainian military airport of Belbek, near Sevastopol, on March 2, 2014. Ukraine's border guard service said on Saturday that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. The dramatic escalation in what threatens to blow up into the worst crisis between Moscow and the West since the Cold War came as pro-Kremlin forces seized key government buildings in Crimea and were blockading military bases on the strategic Black Sea peninsula. AFP PHOTO/ VASILIY BATANOV

Armed men in military fatigues guard the Ukrainian military airport of Belbek, near Sevastopol, on March 2, 2014. Ukraine's border guard service said on Saturday that about 300 armed men were attempting to seize its main headquarters in the Crimean port city of Sevastopol under orders from Russian Defence Minister Sergei Shoigu. The dramatic escalation in what threatens to blow up into the worst crisis between Moscow and the West since the Cold War came as pro-Kremlin forces seized key government buildings in Crimea and were blockading military bases on the strategic Black Sea peninsula. AFP PHOTO/ VASILIY BATANOV