What was the effect of the Nazi invasion of the Soviet Union​

Soon after the invasion, mobile killing units began the mass murder of Soviet Jews. German military and civilian occupation policies led to the deaths of millions of Soviet prisoners of war and Soviet civilians.

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in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

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