Anniversary of Soviet - Nazi pact to invade and divide Poland - 76 years

Molotov–Ribbentrop Pact
https://en.wikipedia.org/wiki/Molotov%E2%80%93Ribbentrop_Pact
On 17 September the Red Army invaded Poland, violating the 1932 Soviet–Polish Non-Aggression Pact, and occupied the Polish territory assigned to it by the Molotov–Ribbentrop Pact. This was followed by co-ordination with German forces in Poland.[112]...
On 21 September, the Soviets and Germans signed a formal agreement coordinating military movements in Poland, including the "purging" of saboteurs.[114] A joint German–Soviet parade was held in Lvov and Brest-Litovsk, while the countries commanders met in the latter location.[115] Stalin had decided in August that he was going to liquidate the Polish state, and a German–Soviet meeting in September addressed the future structure of the "Polish region".[115] Soviet authorities immediately started a campaign of Sovietization[116][117] of the newly acquired areas. The Soviets organized staged elections,[118] the result of which was to become a legitimization of Soviet annexation of eastern Poland.[119]...

Soviets and Nazis meet in Brest

The famous map, signed by Stalin and Ribbentrop (for the nazis) dividing up Europe.



And a cartoon from the period - London Evening Standard on 20 September 1939,