WASHINGTON - The serious escalation of fighting in Ukraine is pushing President Barack Obama closer to the proxy war with Russia that he has long sought to avoid.
Russia's War Against Ukraine
CNN: What will Putin do if US arms Ukraine?

People inspect a destoyed car as pro-Russian rebels point in another direction following shelling that struck the Tekstylnyk district in the eastern Ukraine rebel stronghold Donetsk, on Feb. 4, 2015.