USA HISTORY

Detailed explanation-1: -In June 1941, Nazi Germany invaded Soviet-occupied eastern Poland as part of its attack on the Soviet Union. Eventually, Nazi Germany occupied all of prewar Poland.

Detailed explanation-2: -The occupation of Poland by Nazi Germany and the Soviet Union during World War II (1939–1945) began with the German-Soviet invasion of Poland in September 1939, and it was formally concluded with the defeat of Germany by the Allies in May 1945.

Detailed explanation-3: -The invasion of Poland (1 September – 6 October 1939) was a joint attack on the Republic of Poland by Nazi Germany, the Slovak Republic, and the Soviet Union; which marked the beginning of World War II.

Detailed explanation-4: -It was occupied by Nazi Germany in 1938–45 and was under Soviet domination from 1948 to 1989. On January 1, 1993, Czechoslovakia separated peacefully into two new countries, the Czech Republic and Slovakia. A brief treatment of the history of Czechoslovakia follows.

Detailed explanation-5: -In October 1939, Germany annexed most of western Poland. The former Polish corridor and the Free City of Danzig were incorporated into the new German province of Danzig-West Prussia.