The significance of the Battle of El Alamein during World War II lies in it being a decisive victory for the Allied forces over the Axis powers in North Africa. Fought from October 23 to November 11, 1942, the battle marked a turning point in the North African campaign. Commanded by British General Bernard Montgomery, the Allies successfully halted the advance of German General Erwin Rommel and his Afrika Korps, which provided crucial momentum for subsequent operations in North Africa. The victory boosted Allied morale and paved the way for the eventual Allied invasion of Italy, altering the course of the war in Europe.