<P> The pact delineated the spheres of interest between the two powers , confirmed by the supplementary protocol of the German -- Soviet Frontier Treaty amended after the joint invasion of Poland . It remained in force for nearly two years , until the German government of Adolf Hitler ended the pact by launching an attack on the Soviet positions in Eastern Poland during Operation Barbarossa on 22 June 1941 . </P>
<P> The pact delineated the spheres of interest between the two powers , confirmed by the supplementary protocol of the German -- Soviet Frontier Treaty amended after the joint invasion of Poland . It remained in force for nearly two years , until the German government of Adolf Hitler ended the pact by launching an attack on the Soviet positions in Eastern Poland during Operation Barbarossa on 22 June 1941 . </P>
when did germany attack the soviet union despite the non aggression pact between the two countries
when did germany attack the soviet union despite the non aggression pact between the two countries
22 June 1941
22 June 1941