Oswald Boelcke (May 19th, 1891 – October 28th, 1916) was a German flying ace of the First World War and one of the most influential patrol leaders and tacticians of the early years of air combat. Boelcke is considered the father of the German fighter air force, as well as the "Father of Air Fighting Tactics". He was the first to formalize rules of air fighting, which he presented as the Dicta Boelcke. While he promulgated rules for the individual pilot, his main concern was the use of formation fighting rather than single effort.