The Washington Post explains how the United States started preparing for war when it became clear that Russia would invade Ukraine in a recent publication. Karen DeYoung, a national security reporter for the Washington Post, joins CBS News to discuss.
![How the U.S. knew Vladimir Putin would attack Ukraine is examined in a latest report.](https://atomicdigest.com/wp-content/uploads/2023/12/fig-18-01-2024_05-27-09-1170x658.jpg)