Hostile foreign states are using weaponized information to attack the United States. Russia and China are disseminating disinformation about domestic U.S. race relations and COVID-19 to undermine and discredit the U.S. government. These information warfare attacks, which threaten U.S. national security, may seem new, but they are not. Using an applied history methodology and a wealth of previously classified archival records, this article uses two case studies to reveal how and why a hostile foreign state, the Soviet Union, targeted America with similar disinformation in the past

Calder Walton writes that autocratic regimes — China, Russia and Iran — have been using social media to try to influence U.S. public opinion. History reveals how and why a one-party regime used disinformation to salvage its reputation following a disaster — the Soviet Union's 1986 Chernobyl nuclear catastrophe, whose history also reveals how such disinformation can be countered.

This article, an exercise of applied history, has two aims: first, to understand the history of Soviet disinformation, and second, to make sense of Western efforts to counter it during the Cold War. Doing so provides policy-relevant conclusions from history about countering disinformation produced by Russia and other authoritarian regimes today.