Ninety years ago, on April 1, 1918, the British Royal Flying Corps belonging to the ground forces, merged with the Royal Navy Air Service, creating the world's first independent air force, the famous Royal Air Force, Royal Air Force. However, this seemingly only administrative step fundamentally affected the lives of three men. At that time, air warfare raged in the sky and all three of them were fighters. Without this measure, the two would never have met with one unit, and one of them would not have saved the other's life. The third would not die, at least not under the circumstances I will tell you about now ...