To keep the Russians out, the Americans in, and the Germans down.Hanson's prediction: NATO dies not with a bang but with a whimper. He makes a particular point of how the new Turkey under Erdogan is a bad fit with the rest of NATO.
It may be time for an entirely new alliance of nations willing to pull their own weight militarily and opposed to both militant Islam and resurgent Russia. Those unwilling or unable do so should be left to their own devices, out from under our nuclear umbrella.