Pearl Harbor brought the U.S. into WWII, which changed the reason of why we would fight in the war, and potentially changed the outcome of World War II. ... Despite their ships being attacked many times by German submarines, that was not enough to make the U.S. enter the war.
The Battle of Stalingrad halted the German advance in World War II and marked the turning point of the war in Eastern Europe. ... Eisenhower, the Supreme Allied Commander in Europe, led the D-Day invasion to begin the liberation of Western Europe.
