Obama rules out US military action in Ukraine
President Barack Obama has ruled out the possibility of US military action to address growing violence in Ukraine.
He said America will stand firm with its allies to address the conflict in Ukraine, where the US says Russia is backing pro-Russian separatists, but added that a military confrontation between the US and Russia in the region "is not in the cards".
Instead, Mr Obama pointed to Nato as a deterrent for Russia. He said that, although Ukraine is not part of the alliance, other nearby nations are, and the US takes its commitment to defend Nato allies "very seriously".
The US leader will attend a Nato summit in Wales next week.