5 April – Pravda publishes the article of
Alexander Yakovlev "The Principles of
Perestroika: The Revolutionism of Thought and Actions", which criticizes
Joseph Stalin and supports perestroika.
May
29 May – U.S. President
Ronald Reagan visits the Soviet Union. The
Moscow Summit takes place. The Medium and Short-Range Missile Reduction Treaty is signed, including
OTR-23 Oka as a "bonus for American partners".
^Hosking, Geoffrey A. (1991). The Awakening of the Soviet Union. Harvard University Press. p. 93.
ISBN0674055519.
^Sabanadze, Natalie (2010). Globalization and Nationalism: The Cases of Georgia and the Basque Country. Central European University Press. p. 90.
ISBN9789639776531.