SEPTEMBER 1939 – EASTERN POLAND - The Third Reich and the USSR in 1939. Together against Poland

Historians will long argue how it happened that Polish military intelligence did not access the secret protocol attached to the non-aggression agreement concluded on 23 August 1939 between the Third Reich and the Union of Soviet Socialist Republics, the so-called Molotov-Ribbentrop Pact.  This situation meant that both the Polish Army High Command and the state authorities were surprised by the entry of Soviet troops into Polish territory on 17 September 1939.

  

Wacław Grzybowski and Vladimir Potemkin. Photo: public domain

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