Declassified Report Reveals That the Soviet Union Was Ready For Nuclear War

and the US was apparently unaware:

The U.S. and Soviets were dangerously close to going to war in November 1983, the bombshell report found, and the Cold War-era U.S. national-security apparatus missed many warning signs.

That 1983 “war scare” was spurred by a large-scale U.S. military exercise in Eastern Europe called Able Archer that the Soviets apparently believed was part of allied preparation for a real war.

The Soviet military mobilized in response.


I guess those so-called scare-mongers were right.