67th anniversary of the Soviet invasion on Poland 2006-09-17, 18:42 On September 17th 1939 the Red Army invaded Poland, breaking the anti aggression pact signed with Poland. The Soviets attacked at 6 am.The Polish ambassador in Moscow was handed a note by the Soviet foreign ministry stating that the Polish government and the Polish state ceased to exist. In the years 1940-1941 over half a million Polish soldiers were taken prisoners and massive deportations of civilians took place.