Troops in unmarked uniforms stand guard in Balaklava as people walk in a street, on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. The Kremlin hasn't responded to the accusations, but Russian lawmakers urged Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov)

Troops in unmarked uniforms stand guard in Balaklava as people walk in a street, on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. The Kremlin hasn't responded to the accusations, but Russian lawmakers urged Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov)

Troops in unmarked uniforms stand guard in Balaklava on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. The Kremlin hasn't responded to the accusations, but Russian lawmakers urged Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov)

Troops in unmarked uniforms stand guard in Balaklava as people walk in a street, on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. Kremlin hasn't responded to the accusations, but Russian lawmakers urged Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov)

Troops in unmarked uniforms stand guard in Balaklava on the outskirts of Sevastopol seen through a car window with a Russian flag, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. The Kremlin hasn't responded to the accusations, but Russian lawmakers urged President Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov)

Troops in unmarked uniforms stand guard in Balaklava on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. The Kremlin hasn't responded to the accusations, but Russian lawmakers urged President Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov), APTOPIX

Troops in unmarked uniforms stand guard in Balaklava on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. The Kremlin hasn't responded to the accusations, but Russian lawmakers urged President Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov)

Troops in unmarked uniforms stand guard in Balaklava as people walk in a street, on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. The Kremlin hasn't responded to the accusations, but Russian lawmakers urged President Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov)

A demonstrator waves a Sevastopol civic flag during a rally in support of Russian-speaking provinces in eastern and southern Ukraine where many oppose the new authorities in Kiev in Moscow, Russia, Saturday, March 1, 2014. PRussian President Vladimir Putin asked parliament Saturday for permission to use the country's military in Ukraine, moving to formalize troop deployments that Ukrainian officials have described as an ongoing invasion of the strategic region of Crimea.(AP Photo/Alexander Zemlianichenko)

A gunman in unmarked uniform stands guard as troops take control the the Coast Guard offices in Balaklava, outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. The word in the background reads "To Sevastopol". An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. (AP Photo/Andrew Lubimov)

A man in unmarked uniform looks from atop of a military vehicle while standing guard as troops taking control the the Coast Guard offices in Balaklava, outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. The Kremlin hasn't responded to the accusations, but Russian lawmakers urged Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov)

A Ukrainian man stands in protest in front of gunmen in unmarked uniforms as they stand guard in Balaklava, on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. The Kremlin hasn't responded to the accusations, but Russian lawmakers urged Putin to act to protect Russians in Crimea. (AP Photo/Andrew Lubimov)

Troops in unmarked uniforms stand guard in Balaklava on the outskirts of Sevastopol, Ukraine, Saturday, March 1, 2014. An emblem on one of the vehicles and their number plates identify them as belonging to the Russian military. Ukrainian officials have accused Russia of sending new troops into Crimea, a strategic Russia-speaking region that hosts a major Russian navy base. (AP Photo/Andrew Lubimov)

Young boys look on as unidentified armed individuals block the center of Balaklava, near Sevastopol, on March 1, 2014. Russia's parliament on March 1 gave President Vladimir Putin the go-ahead to send troops into Ukraine, despite a warning from Washington that such a deployment would results in "costs" for Moscow. The stark escalation of the ex-Soviet country's three-month political crisis came amid growing instability in Ukraine's predominantly Russian peninsula of Crimea that has housed Kremlin navies for nearly 250 years. AFP PHOTO/ VIKTOR DRACHEV

A woman walks her dogs past unidentified armed individuals blocking the center of Balaklava, near Sevastopol, on March 1, 2014. Russia's parliament on March 1 gave President Vladimir Putin the go-ahead to send troops into Ukraine, despite a warning from Washington that such a deployment would results in "costs" for Moscow. The stark escalation of the ex-Soviet country's three-month political crisis came amid growing instability in Ukraine's predominantly Russian peninsula of Crimea that has housed Kremlin navies for nearly 250 years. AFP PHOTO/ VIKTOR DRACHEV

An unidentified man wearing military fatigues gestures in front of armed individuals blocking the center of Balaklava, near Sevastopol, on March 1, 2014. Russia's parliament on March 1 gave President Vladimir Putin the go-ahead to send troops into Ukraine, despite a warning from Washington that such a deployment would results in "costs" for Moscow. The stark escalation of the ex-Soviet country's three-month political crisis came amid growing instability in Ukraine's predominantly Russian peninsula of Crimea that has housed Kremlin navies for nearly 250 years. AFP PHOTO/ VIKTOR DRACHEV

A pro-Russia supporter holds a Russian flag in front of unknown military personnel blocking acces to the Ukrainian frontier guard base in Balaklava, a small city not far from Sevastopol, on March 1, 2014. Ukraine's border guard service said today 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. AFP PHOTO / VIKTOR DRACHEV

A man with his child walks by pro-Russian armed men blocking acces to the Ukrainian frontier guard base in Balaklava, a small city not far from Sevastopol, on March 1, 2014. Ukraine's border guard service said today 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. AFP PHOTO / VIKTOR DRACHEV

People look at unidentified men in military fatigues blocking a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. AFP PHOTO/ VIKTOR DRACHEV

People look at unidentified men in military fatigues blocking a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. AFP PHOTO/ VIKTOR DRACHEV

People look at unidentified men in military fatigues blocking a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. AFP PHOTO/ VIKTOR DRACHEV

People look at unidentified men in military fatigues blocking a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. AFP PHOTO/ VIKTOR DRACHEV

A woman waits in front of unidentified men in military fatigues blocking a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. AFP PHOTO/ VIKTOR DRACHEV

Pro-Russian activists hold Russian flags as unidentified men in military fatigues block a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. AFP PHOTO/ VIKTOR DRACHEV

People look at unidentified men in military fatigues blocking a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. AFP PHOTO/ VIKTOR DRACHEV

Unidentified men in military fatigues stand in front of a poster reading " The border of the country - is sacred and untouchable" as they block a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. AFP PHOTO/ VIKTOR DRACHEV

Unidentified men in military fatigues stand in front of a poster reading " The border of the country - is sacred and untouchable" as they block a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. AFP PHOTO/ VIKTOR DRACHEV

Orthodox priests stand among pro-Russian armed men blocking access to the Ukrainian frontier guard base in Balaklava, a small city not far from Sevastopol, on March 1, 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. AFP PHOTO / VIKTOR DRACHEV

Orthodox priests stand among pro-Russian armed men blocking access to the Ukrainian frontier guard base in Balaklava, a small city not far from Sevastopol, on March 1, 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. AFP PHOTO / VIKTOR DRACHEV

Young people look at pro-Russian armed men blocking access to the Ukrainian frontier guard base in Balaklava, a small city not far from Sevastopol, on March 1, 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. AFP PHOTO / VIKTOR DRACHEV

People look at pro-Russian armed men blocking access to the Ukrainian frontier guard base in Balaklava, a small city not far from Sevastopol, on March 1, 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. AFP PHOTO / VIKTOR DRACHEV

A man waves a Russian Navy flag as he stands among pro-Russian armed men blocking access to the Ukrainian frontier guard base in Balaklava, a small city not far from Sevastopol, on March 1, 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. AFP PHOTO / VIKTOR DRACHEV

A man carrying his son walks in front of of pro-Russian armed men in military fatigues blocking the base of the Ukrainian frontier guards, in Balaklava, a small city not far from Sevastopol, on March 1, 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. AFP PHOTO / VIKTOR DRACHEV

A woman waits in front of unidentified men in military fatigues blocking a base of the Ukrainian frontier guard unit in Balaklava on March 1, 2014. Ukraine's border guard service said 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. TOPSHOTS/AFP PHOTO/VIKTOR DRACHEV