A Ukrainian armored personnel carrier is stationed behind the gate of a military base in the port of Kerch, Ukraine, Monday, March 3, 2014. Pro-Russian troops controlled a ferry terminal on the easternmost tip of Ukraine's Crimea region close to Russia on Monday, intensifying fears that Moscow will send even more troops into the strategic Black Sea region in its tense dispute with its Slavic neighbor. (AP Photo/Darko Vojinovic)

Ukrainian soldiers stand guard at the gate of a military base in the port of Kerch, Ukraine, Monday, March 3, 2014. Pro-Russian troops controlled a ferry terminal on the easternmost tip of Ukraine's Crimea region close to Russia on Monday, intensifying fears that Moscow will send even more troops into the strategic Black Sea region in its tense dispute with its Slavic neighbor. (AP Photo/Darko Vojinovic)

A ship sails by the port of Kerch, Ukraine, Monday, March 3, 2014. Pro-Russian troops controlled a ferry terminal on the easternmost tip of Ukraine's Crimea region close to Russia on Monday, intensifying fears that Moscow will send even more troops into the strategic Black Sea region in its tense dispute with its Slavic neighbor. (AP Photo/Darko Vojinovic)

A Ukrainian soldier stands guard at the gate of a military base in the port of Kerch, Ukraine, Monday, March 3, 2014. Pro-Russian troops controlled a ferry terminal on the easternmost tip of Ukraine's Crimea region close to Russia on Monday, intensifying fears that Moscow will send even more troops into the strategic Black Sea region in its tense dispute with its Slavic neighbor. (AP Photo/Darko Vojinovic)

Pro Russian soldiers wait outside a Ukrainian military base in the port of Kerch, Ukraine, Monday, March 3, 2014. Pro-Russian troops controlled a ferry terminal on the easternmost tip of Ukraine's Crimea region close to Russia on Monday, intensifying fears that Moscow will send even more troops into the strategic Black Sea region in its tense dispute with its Slavic neighbor. The seizure of the terminal in the Ukrainian city of Kerch about 20 kilometers (12 miles) by boat to Russia, comes as the U.S. and European governments try to figure out ways to halt and reverse the Russian incursion. (AP Photo/Darko Vojinovic)

A pro-Russian soldier stands by a billboard with a map of Crimea and bearing the words "Autonomous Republic of Crimea" in the port of Kerch, Ukraine, Monday, March 3, 2014. Pro-Russian troops controlled a ferry terminal on the easternmost tip of Ukraine's Crimea region close to Russia on Monday, intensifying fears that Moscow will send even more troops into the strategic Black Sea region in its tense dispute with its Slavic neighbor. (AP Photo/Darko Vojinovic), APTOPIX