From SOFREP:

In the mid 1960’s and throughout the 1970’s, Rhodesia (now Zimbabwe) faced a boiling communist inspired insurgency that sought to overthrow the existing government that was led by the descendants of European settlers. The Rhodesian Bushwar would last over fifteen years, coming on the heels of the Malayan Emergency and the Vietnam Conflict. Faced with bureaucratic constraints and operational shortcomings, the Rhodesians were forced to maximize the potential of their meager resources by creating highly reliable small unit forces that could conduct raids and “pseudo-operations” against rebel forces. Among these units were the Rhodesian Light Infantry Commandos (RLI), the Rhodesian SAS and the Selous Scouts. Though modern circumstances have changed, the tactics of the Selous Scouts continue to be relevant and apply to the ongoing fight against ISIS and the Global War on Terror.