The Iron Curtain of the 1940s and '50s was ostensibly designed to isolate Russia from Western Europe – to keep out Communist ideology and military penetration. Today's sanctions regime is aimed inward, to prevent America's NATO and other Western allies from opening up more trade and investment with Russia and China. The aim is not so much to isolate Russia and China as to hold these allies firmly within America's own economic orbit. Allies are to forego the benefits of importing Russian gas and Chinese products, buying much higher-priced U.S. LNG and other exports, capped by more U.S. arms.

The sanctions that U.S. diplomats are insisting that their allies impose against trade with Russia and China are aimed ostensibly at deterring a military buildup. But such a buildup cannot really be the main Russian and Chinese concern. They have much more to gain by offering mutual economic benefits to the West. So the underlying question is whether Europe will find its advantage in replacing U.S. exports with Russian and Chinese supplies and the associated mutual economic linkages.

What worries American diplomats is that Germany, other NATO nations and countries along the Belt and Road route understand the gains that can be made by opening up peaceful trade and investment. If there is no Russian or Chinese plan to invade or bomb them, what is the need for NATO? What is the need for such heavy purchases of U.S. military hardware by America's affluent allies? And if there is no inherently adversarial relationship, why do foreign countries need to sacrifice their own trade and financial interests by relying exclusively on U.S. exporters and investors?

These are the concerns that have prompted French President Macron to call forth the ghost of Charles de Gaulle and urge Europe to turn away from what he calls NATO's "brain-dead" Cold War and break with the pro-U.S. trade arrangements that are imposing rising costs on Europe while denying it potential gains from trade with Eurasia. Even Germany is balking at demands that it freeze by this coming March by going without Russian gas.