US President Barack Obama's national security adviser, Susan Rice, said on Sunday it would be a "grave mistake" for Russia to send military forces into Ukraine and that it is not in the interest of Russia, Europe or the United States to see Ukraine split apart.
Speaking on the NBC program "Meet the Press," Rice was asked about a possible scenario in which Russia would send forces into Ukraine to restore a government more friendly to Moscow.
"That would be a grave mistake. It's not in the interests of Ukraine or of Russia or of Europe or the United States to see a country split.
