This thesis outlines the experience of tactical command in the British and German fighter aviation branches in the First World War. It is based on primary and secondary accounts, as well as modern leadership scholarship to guide the study of command. The study considers the assessment of an official historian of the American Expeditionary Force, William Sherman, that ‘patrol leading became the most important factor in determining air supremacy’ and that tactical command was the decisive factor in British dominance in fighter aviation in late 1918. It considers the qualities of success and the systems of command between the German and British air forces, and determines that they were orientated towards very different goals. It argues...