(A) Hitler came into power
(B) Germany annexed Austria
(C) Japan attacked Pearl Harbor
(D) ** Germany attacked Poland
EXPLANATIONS BELOW
Concept note-1: -German troops invaded Poland on September 1, 1939, triggering World War II. In response to German aggression, Great Britain and France declared war on Nazi Germany. Nazi Germany possessed overwhelming military superiority over Poland.
Concept note-2: -On 1 September 1939, without a formal declaration of war, Nazi Germany invaded Poland using the pretext of the Gleiwitz incident, a provocation (one of many) staged by the Germans, who claimed that Polish troops attacked a post along the German–Polish border.
Concept note-3: -Hitler was demanding Danzing corridor from Poland as it was inhabited mainly by the Germans. Realizing the danger, Britain and France pledged assistance to Poland against Germany. Germany accused Poland for committing atrocities against Germans living there and it became a cause of World War Second.
Concept note-4: -Hitler had attacked Poland because he wanted Germans to live there. He considered the Polish people inferior and only fit as a work force. In the last three months of 1939, the Nazis murdered 65, 000 Jewish and non-Jewish Poles.
Concept note-5: -Hitler’s invasion of Poland in September 1939 drove Great Britain and France to declare war on Germany, marking the beginning of World War II.