M. E. Sarotte

Even the most ardent advocates of NATO expansion after the implosion of the USSR realized that it had limits—and one of those limits was Ukraine.

Hal Brands urges the U.S. to make China and Russia “pay exorbitantly” for their policies. History shows that has never worked.

Yes, the Russian leader is an authoritarian aggressor. But different decisions at key points by the U.S. might have made him less so.