From China to cyber, has Biden agenda reinvigorated NATO?

President Joe Biden’s approach to international alliances and shared values has helped inject a renewed sense of purpose into NATO. But could its focus become too diffuse?

Atmospherics and style are not everything.

But in bringing his commitment to America’s alliances to the NATO summit Monday, along with his conviction that democracies are best suited to meet the 21st century’s stiff challenges, President Joe Biden went a good way toward answering a question hanging over the North Atlantic alliance since the end of the Cold War: What are you good...