Flying ace after he became the first pilot to down five German aircraft. The British initially used the term "star-turns" (a show business term), while the Germans described their elite fighter pilots as "Überkanonen" (which roughly translates to "top guns"). The successes of such German ace pilots as Max Immelmann and Oswald Boelcke were much publicised for the benefit of civilian morale, and the "Pour le Mérite", Prussia’s highest award for gallantry, became part of the uniform of a leading German ace. In the "Luftstreitkräfte" the "Pour le Mérite" was nicknamed "Der blaue Max"/The Blue Max, after Max Immelmann, who was the
Flying ace William P. Driscoll. The first military aviators to score five or more victories on the same date, thus each becoming an "ace in a day", were pilot Julius Arigi and observer/gunner Johann Lasi of the Austro-Hungarian air force, on August 22, 1916, when they downed five Italian aircraft. The feat was repeated five more times during World War I. Becoming an ace in a day became relatively common during World War II. A total of 68 U.S. pilots (43 Army Air Forces, 18 Navy, and seven Marine Corps pilots) were credited with the feat. In the Soviet offensive of 1944