The British used air power to great effect in various colonial hotspots in the Middle East and North Africa during the immediate postwar period. The newly formed RAF contributed to the defeat of Afghan forces during the Third Anglo-Afghan War by harassing the enemy and breaking up their formations. Z force, an air squadron, was also used to support ground operations during the Somaliland campaign, in which the "Mad Mullah" Mohammed Abdullah Hassan's insurgency was defeated. Following from these successes, the decision was made to create a unified RAF Iraq Command to use air power as a more cost-effective way of controlling large areas than the use of conventional land forces. It was effectively used to suppress the Great Iraqi Revolution of 1920 and various other tribal revolts.