Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Jagdgeschwader 1 (JG 1) of World War I, was a fighter unit comprising four Jastas or 'fighter squadrons', originally raised by combining Jastas 4, 6, 10 and 11, on 24 June 1917 with Manfred von Richthofen as commander. JG 1 became known as "The Flying Circus" or "Richthofen's Circus" because its fighter planes were painted in bright and distinctive color schemes for easy identification during dogfights.