To be clear, America shouldn’t abandon NATO. But it’s time for our European allies to do more. In particular, they must take primary responsibility for the conventional defense of Europe by investing more in their own militaries. All the way back in 2006, NATO member states pledged to spend at least 2 percent of their GDP on national defense. It should be higher. The United States spends far more than that on defense. But many NATO members still haven’t met even this minimal commitment.

And this isn’t just about U.S. interests. For our allies, it’s also a matter of self-preservation. If NATO member states aren’t prepared to defend themselves, they risk serious danger if U.S. forces are pulled from Europe into a crisis in the Asia-Pacific. Every European nation must now make the necessary investments to prepare themselves for a new threat environment, or risk the worst.

As to Sweden and Finland, both nations are advanced economies, with capable militaries. But they haven’t yet made the policy commitments appropriate to their geostrategic positions. Sweden doesn’t spend 2 percent of its GDP on defense and won’t for years to come. And Finland, though it announced a one-time defense spending boost, hasn’t made clear whether it will sustain these levels. In the event of a future conflict in Europe, U.S. forces would almost certainly be called in to defend both countries.