VLADIMIR PUTIN

Russia was acting more like an adversary than a partner, NATO's Supreme Allied Commander Europe, U.S. Air Force General Philip Breedlove said, and the 28-nation alliance should rethink the positioning and readiness of its forces in eastern Europe.

The Moscow stock exchange has lost nearly $70 billion this month as the U.S. and EU impose sanctions.

The Russian individuals being sanctioned by the U.S. Department of Treasury are well known players close to President Vladimir Putin.

The EU has launched a new sanctions round against Russian officials, including Deputy P.M. Rogozin and Putin Advisor Sergey Glazyev.

On the Black Sea across from Crimea, Turkey has a stake in the future of the peninsula, where Muslim Tatars live.

The Russian oil billionaire and close Putin associate is a key target of recently imposed sanctions.

U.S. sanctions against Russian businessmen appear to have demonstrated a link between an oil mogul and President Vladimir Putin.

The fresh round of sanctions follows Thursday's actions by the U.S., which involved 20 more Russians officials.

President Obama signed an executive order imposing more sanctions against Russian officials and Russia's financial sector.

The Russian news outlet's latest post praising Putin and Crimea's annexation crosses the line into pure propaganda.

Obama needs to re-read his own words and start acting on them.

In a sign that Putin isn't backing down, the Russian flag was raised over Crimea's naval headquarters on Wednesday.

After weeks of tension in Crimea, shots have reportedly been fired by Russian troops at a Ukrainian naval base.

A Russian state-owned energy firm has proposed to develop Crimea's oil and gas sector, which includes a Ukrainian-owned company.

Reporter Avedis Hadjian talks to Ukrainians on the streets of Kiev, in the tent villages of Maidan Square and in pro-Russian enclaves in Crimea.

This is not the first time that Putin's close aide and envoy on missile defense makes a controversial comment.

Will Russia's Baltic naval base at Kaliningrad be Putin's next move? And is Russia prepared for the West's response?

The West will not recognize the annexation, and the EU and U.S. may go to the U.N. to voice opposition.

There are significant shale natural gas reserves on the continent.

More than 93 percent of Crimeans on Monday voted to split from Ukraine and join Russia.

The Russian president looks ready to annex Crimea as soon as Tuesday.