Foreign Affairs
As the war in Ukraine grinds into its third month, it is not too early to start asking what lessons we might take from the conflict. One set of lessons focuses on the tactical—how man-portable precision-guided munitions appear to have reduced the value of large-scale armor formations. Another perspective focuses on the lessons flowing from the risks and rewards of NATO expansion over the past two decades. Pulling further back, looking at the conflict from the perspective of the entire international system, the Russo-Ukrainian war provides essential information about the likely emergence of a new Cold War.