Sikorski–Mayski agreement
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The Sikorski–Mayski agreement was a treaty between the Soviet Union and Polish government-in-exile that was signed in London on 30 July 1941. Its name is taken from its two most notable signatories: t
Signing of the agreement, seated at the table from the left: Władysław Sikorski, Anthony Eden, Winston Churchill, and Ivan Maisky
Katyn massacre
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The Katyn massacre was a series of mass executions of Poles carried out by the Soviet Union between April and May 1940. Though the killings also occurred in the NKVD prisons in Kalinin, Kharkiv and el
Sikorski–Mayski agreement
…on 12 August 1941, from whom a 40,000-strong army (Anders Army, later known as the Polish II Corps) was formed under General Władysław Anders. The whereabouts of thousands more Polish officers, however, would remain unknown for two more years and weigh heavily on subsequent Polish-Soviet relations. Territories of Poland annexed by the Soviet…
Mass grave of Polish officers in Katyn Forest, exhumed by Germany in 1943
Soviet Foreign Minister Vyacheslav Molotov signs the Molotov–Ribbentrop Pact. Behind him: Ribbentrop and Stalin.
Polish POWs captured by the Red Army during the Soviet invasion of Poland
Memo from Beria to Stalin which proposed the execution of Polish officers, policemen, etc.