Today's warning from NATO Military Chief Philip Breedlove, that Russian troops could travel to Ukraine in a 12-hour period preceding an order, has international forces prepared to defend the territory.

Today, Interim Ukrainian President Oleksandr Turchynov declared a withdrawal of armed forces from Crimea.

THE PRESIDENT: Good morning, everybody. I wanted to provide an update on the situation in Ukraine and the steps that the United States is taking in response.