Successor to the Mirage III and predecessor to the Mirage 2000, the Mirage F1 has sometimes been described as a " transition aircraft." Yet this elegant Mach 2 interceptor with a wing shape that contrasts with the conventional delta previously used on the Dassault-built fighter, has equipped a dozen Army Air Force fighter squadrons for almost 30 years. Entered into service in 1974, it has not only assured air nationwide protection, but has also been deployed overseas, primarily in Africa. This book is devoted to the genesis of the aircraft and its use in the various French units. Here is an updated edition in the first of two volumes originally issued in 2007. TEXT IN FRENCH