Russia ripping up international rule book, NATO chief says

WASHINGTON (Reuters) - NATO Secretary-General Anders Fogh Rasmussen accused Russia on Wednesday of tossing out international rules in an attempt to "redraw the map of Europe," as he called the Ukraine crisis NATO's most pressing security challenge.

"We have seen Russia rip up the international rule book, trying to redraw the map of Europe, and creating, in just a few weeks, the most serious security crisis since the end of the Cold War," Rasmussen told a forum at Georgetown University during a trip to Washington.