Richard O'Connor

I was reading the Wikipedia entry for General Sir Richard O'Connor, who beat the Italians in Operation Compass that took Cyrenaica from the Italians, starting from late 1940 and ending at Beda Fomm. What interested me was that O'Connor served under J.F.C. Fuller, as brigade major of the Experimental Brigade, from 1921 to 1935. General Fuller was an early advocate for the use of combined arms forces, including armour, artillery, infantry, and aircraft in support. O'Connor had this mysterious knowledge about mobile forces that I could not explain.