Tempered in the Spanish Civil War, the Messerschmitt Bf 109 was ready and waiting when the German invasion of Poland started World War II. The outstanding fighter of the day, the Messerschmitt quickly overcame all opposition and maintained its supremacy in the skies until it met its equal in the famed British Spitfire. During the war, the Messerschmitt fought on every front in which the German Luftwaffe was engaged.