This essay examines the guerrilla war fought between the Polisario Front, representing the Western Saharan natives, and the Kingdom of Morocco, as well as Mauritania. Even today, the aforementioned guerrilla war provides many lessons regarding desert counter-insurgency (COIN) operations. Besides reviewing the necessary activities for conducting a successful guerrilla war, this paper will delineate the most efficient methods for defending against one. This is the first COIN operation for the Moroccan government in which it has taken an unusual approach in standing up against the guerrillas. It has achieved long-standing results by the restructuring of its tactics and the units stationed in the Western Saharan region as well as by the construction of a system of fortifications.