Launching a campaign of conquest against Ukraine, Russia has committed the most serious assault on the democratic international order since the end of the Second World War. The United States must rally the world in response to Vladimir Putin’s outrage. Four major steps should be taken immediately.

First, the Biden administration should introduce massive sanctions on the Russian economy and military. This should include sanctions against all nations that purchase Russian military equipment, sanctions against Russia’s energy export sector and companies that service it (Russia lacks sufficient indigenous capacity), and a full ban of Russian banks from the SWIFT banking system, which will deny them access to Western financial markets.