The Bf109 was the dominant fighter of the early years of World War II and a revolutionary aircraft in its time. With images drawn largely from private collections, most of them never before published in book form, this volume traces the story of the Bf109 from its origins to its triumph over France and its fate over southern England in late 1940. Also included are the men and planes of the Legion Condor fighting in the Spanish Civil War, plus details of the tactical lessons learned from the Polish campaign of 1939, where the Messerschmitt helped make victory quick and complete.