While Ukrainian forces have fought to defend against Russia's invasion since February, the war's conduct has been influenced by international involvement—namely, the supply of weapons and equipment Ukraine has received from its foreign supporters. But as the United States, its European allies, and other countries around the world have offered military assistance, they have also been active on another front: putting in place a massive sanctions regime targeting Russia. That's the subject this episode explores. John Amble is joined by Edward Fishman, a former government official who worked extensively on sanctions policy and is now an adjunct senior fellow at the Center for a New American Security and a nonresident senior fellow at the Atlantic Council.