Editorial: The US couldn’t stop Russia from attacking Ukraine — but it can make it pay

The most conspicuous victims of Russia’s unprovoked invasion of Ukraine are the people who will lose their lives in defending their country against a brutal (and nuclear-armed) neighbor. But Vladimir Putin’s decision to launch a many-pronged attack — an audacious operation the United States predicted but was unable to prevent — is also a devastating assault on international norms and potentially a harbinger of a wider war in Europe.