The United States became involved in World War II primarily because B) European democracies supported United States policies toward Germany and Japan B) European democracies supported United States policies toward Germany and Japan D) the Japanese empire bombed the US Naval base at Pearl Harbor, Hawaii D) the Japanese empire bombed the US Naval base at Pearl Harbor, Hawaii C) President Franklin D. Roosevelt did not enforce the Neutrality Acts C) President Franklin D. Roosevelt did not enforce the Neutrality Acts A) Germany refused to pay its debts from World War I A) Germany refused to pay its debts from World War I