500,000
Poland was attacked by Germans because they wanted to take over.
The Germans attacked first when they invaded Poland on 9-1-39.
Poland
Germans are in a minority in Poland. There are about 148,000 Germans in Poland. But German population is decreasing in Poland.
Technically, yes. Eastern Poland was attacked by the Soviet Union in the early stages of WW2. Western Poland was attacked by Nazi Germany. The Germans eventually ended up taking all of Poland, kicking the Soviets out.
Great Britain: Poland had a treaty with GB and had to support Poland in case Nazi-Germany attacked it. USA: Pearl Harbor was attacked by the Japanese who were allied with the Germans. Italy was also allied with Germany and Austria and Czech was annexxed to to it. France and Poland were attacked by Germany.
The Germans attacked Poland, this caused England and France to declare war on Germany, so Germany declared war on them.
The Soviets moved into Eastern Poland Sept 17, 1939. It was 17 days after the Germans attacked the western part.
September 1, 1939 in Poland, Nazi Germans attacked
After the Polish campaign of 1939, the Germans attacked France, Netherlands and Belgium.
Poland was between Germany and the Soviet Union at the outbreak of the war, Germany attacked from the West while the Russians attacked from the East - This lead to the quick downfall of Poland in 1939.