In a new column in The Times of London, President Obama and British Prime Minister David Cameron urged their allies in NATO to reject isolationism and join them in a coalition against ISIS:
If terrorists think we will weaken in the face of their threats, they could not be more wrong. Countries like Britain and America will not be cowed by barbaric killers... We will be more forthright in the defense of our values, not least because a world of greater freedom is a fundamental part of how we keep our own people safe. [The Times of London]
The NATO summit's official agenda includes the crisis in Ukraine and NATO's mission in Afghanistan, but the threat of ISIS is expected to dominate the conversations as well.