<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>
who broke the nonaggression pact in june of 1941
who broke the nonaggression pact in june of 1941
the German government of Adolf Hitler
the German government of Adolf Hitler