As a candidate, Donald J. Trump disparaged the alliance. But as president, and facing a fresh conflict with Russia, he now embraces the organization as a pillar of security.
He is proving to be less of a radical than either his campaign statements or his tempestuous early phone calls with foreign leaders would suggest.
He saw the signs of an elevated Soviet military alert in Eastern Europe but decided not to respond, perhaps preventing a spiral into nuclear war.
The commander of the international military force in Afghanistan said they were needed to train and advise Afghan soldiers.