USSR signs the UN Convention on the Law of the Sea

General Wojciech Jaruzelski’s government suspended civil liberties, arrested Solidarity leaders, and restricted communications. The crackdown was carried out by Polish authorities under intense Soviet...

During a strike against martial law, Polish security forces shot miners at the Wujek coal mine, killing nine. The killings expose the coercion used by the Polish state to suppress worker resistance.

With members imprisoned, exiled, or threatened, the group announced it could no longer operate safely. Its records and monitoring practice had already connected local rights claims to the Helsinki...

Brezhnev’s death ended an eighteen-year period of leadership. The succession occurred amid economic slowdown, a costly war in Afghanistan, and growing questions about the social contract and political...

The Central Committee selected former KGB chief Andropov two days after Brezhnev’s death. His short tenure pursued discipline and limited administrative changes without loosening one-party control.

A Soviet interceptor destroyed a civilian airliner that had strayed into Soviet airspace, killing all 269 people aboard. Moscow’s initial secrecy and denial compounded the loss and intensified...

A Soviet early-warning system indicated a U.S. missile launch; duty officer Petrov judged it a false alarm rather than escalating the alert. The incident shows how nuclear risk depended on human...

The annual command-post exercise practiced nuclear release procedures during a period of acute mistrust. Declassified records show Soviet intelligence closely watched it; historians debate the scale...

After NATO began deploying U.S. intermediate-range missiles in Europe, the Soviet delegation left the talks. The arms-control breakdown heightened fear among European communities living under the...

Warsaw Pact states declined to set a resumption date for negotiations on mutual troop reductions in Europe. The suspension narrowed a major arms-control forum during a period of heightened nuclear...