The Cavalry School Hunt was officially organized in 1921 and provided a colorful spectacle on Sunday mornings. These activities gave rise to the perception of a special quality of life at Fort Riley that came to be known as the "Life of Riley." The technological advances demonstrated on the battlefields of Europe and World War I – most notable the tank and machine gun – raised questions in the inter-war years over the future of cavalry. By the late 1920s, the War Department directed development of a tank force by the Army. This was followed by activation of the 7th Cavalry Brigade (Mechanized) at Fort Knox, Kentucky, in the fall of 1936 to make-up the 2nd Regiment of this brigade.