Another line in the sand being drawn?
Check it out:

President Obama warned Friday there “will be costs” if Russian takes military action inside Ukraine.

In a brief appearance in the White House press briefing room, Obama said his administration was “deeply concerned” by reports that the Russian military is already intervening in the Crimea, an area of Ukraine with strong Russian ties.

“Any violation of Ukraine’s sovereignty and territorial integrity would be deeply destabilizing, which is not in the interests of Ukraine, Russia or Europe,” Obama said. “It would represent a profound interference in matters that must be determined by the Ukrainian people.”