The Fokker Scourge (also sometimes called the Fokker Scare) was a phase of the contest for air superiority on the Western Front during the First World War. During this phase, the synchronised machine-gun armed Fokker Eindecker monoplane fighter aircraft of the Imperial German Fliegertruppen (Flying Corps) held a tactical advantage over poorly armed Allied aircraft, enabling a degree of air superiority. Significant as the technical advantage of the new fighter was, the psychological effect of its unheralded introduction was also a major factor.