European nations are taking a more prominent leadership role within NATO following President Trump's unilateral actions regarding Iran. This has prompted a reassessment of the alliance's direction.

President Trump's decision to leave NATO in the dark before launching strikes on Iran has inflamed tensions and is putting new urgency on rethinking the alliance. <img alt="President Trump attends a bilateral meeting with NATO Secretary-General Mark Rutte on the sidelines of the World Economic Forum annual meeting in Davos, Switzerland, on Jan. 21." src="https://npr.brightspotcdn.com/dims3/default/strip/false/crop/3691x2460+0+0/resize/3691x2460!/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%...