1. Crimea: Ukraine/Russia

2. Crimea: Ukraine/Russia

3. Crimea: Ukraine/Russia

4. Crimea: Ukraine/Russia

5. Crimea: Ukraine/Russia
A Russian military fleet greeted by pro-Russian supporters enters Sevastopol Bay, Ukraine

6. Crimea: Ukraine/Russia
The Crimean Peninsula extends into the Black Sea, all but an island except for a narrow strip of land in the north connecting it to the mainland.
On its eastern shore, a finger of land reaches out almost to Russia. Russia plans to build a bridge across the strait.
With an area of 27,000 square kilometers (10,000 square miles), it is slightly smaller than Belgium. It is Ukraine's only formally autonomous region, with Simferopol as its capital. Sevastopol has a separate status within Ukraine.  
It's best known in the West as the site of the 1945 Yalta Conference, where Soviet dictator Josef Stalin, President Franklin D. Roosevelt and British Prime Minister Winston Churchill sealed the postwar division of Europe.

7. Crimea: Ukraine/Russia
Crimea was absorbed into the Russian empire along with most of ethnic Ukrainian territory by Catherine the Great in the 18th century. Russia's Black Sea naval base at Sevastopol was founded soon afterwards.
More than half a million people were killed in the Crimean War of between Russia and the Ottoman Empire, which was backed by Britain and France. The conflict reshaped Europe and paved the way for World War One.
In 1921, the peninsula, then populated mainly by Muslim Tatars, became part of the Soviet Union. The Tatars were deported en masse by Soviet leader Joseph Stalin at the end of World War Two for alleged collaboration with the Nazis.

8. Crimea: Ukraine/Russia
Crimea only became part of Ukraine when Soviet leader Nikita Khrushchev gave the peninsula to his native land in This hardly mattered until the Soviet Union broke up in 1991 and Crimea ended up in an independent Ukraine. Despite that, nearly 60 percent of its population of 2 million identify themselves as Russians.
Since the collapse of the Soviet Union in 1991, there have been periodic political tussles between over its status between Moscow and Kiev.

9. Crimea: Ukraine/Russia

10. Crimea: Ukraine/Russia
The population of Crimea is around 2 million.
Ukraine's 2001 census showed around 58 percent were ethnic Russian, 24 percent ethnic Ukrainian and 12 percent Tatars, who support the new pro-Western government in Kiev.

11. Crimea: Ukraine/Russia
It accounts for three percent of Ukraine's gross domestic product, with 60 percent of its own output made up by services.
The land is intensely farmed, with wheat, corn and sunflowers the main crops. Extra water supplies are brought by canal from Ukraine's Dnieper River.
There are chemical processing plants and iron ore is mined in Kerch. Ukraine has two grain terminals in Crimea - in Kerch and in Sevastopol. According to UkrAgroConsult, these have exported 1.6 million tons of grain so far this season or 6.6 percent of Ukraine's total exports. 

12. Crimea: Ukraine/Russia
Black Sea Fleet

13. Crimea: Ukraine/Russia
On Crimea's southern shore sits the port city of Sevastopol, home to the Russian Black Sea Fleet and its thousands of naval personnel.
Russia kept its half of the Soviet fleet, but was rattled in 2009 when the pro-Western Ukrainian President Viktor Yuschenko warned that it would have to leave the key port by 2017.
Shortly after pro-Russian Viktor Yanukovych was elected president in 2010, he agreed to extend the Russian lease until 2042 in exchange for discounts on Russian gas supplies. Russia fears that Ukraine's new pro-Western government could evict it.
Russia's Black Sea base in Sevastopol gives Moscow access to the Mediterranean. Ukraine's fleet, carved out of the same Soviet fleet as Russia's, is also based there. 

14. Crimea: Ukraine/Russia

15. Crimea: Ukraine/Russia

16. Crimea: Ukraine/Russia

17. Crimea: Ukraine/Russia
Military Might Compared

18. Crimea: Ukraine/Russia

19. Crimea: Ukraine/Russia