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) 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.
