Which of the following are the reasons why World War II began? Select all that apply.
(A) Countries were strongly nationalistic.
(B) Germany declared itself democratic.
(C) Â Fascist dictators wanted to create empires.
(D) Germany and the Soviet Union invaded Poland.
Hitler had long planned an invasion of Poland, a nation to which Great Britain and France had guaranteed military support if it were attacked by Germany. ... On September 1, 1939, Hitler invaded Poland from the west; two days later, France and Britain declared war on Germany, beginning World War II.
