sentences:  There it passed under British command and provided the bulk of the units and troops of the Polish II Corps (member of the Polish Armed Forces in the West), which fought in the Italian Campaign.At the start of the Soviet invasion of Poland (17 September 1939), the Soviets declared that the Polish state, previously invaded by Axis forces on 1 September 1939, no longer existed, effectively breaking off Soviet-Polish relations.Soviet authorities deported about 325,000 Polish citizens from Soviet-occupied Poland to the Soviet Union in 1940–41.