In 1961, conflict erupted in the African colonies, which soon evolved into a series of guerrilla campaigns against Portuguese rule. The Paratroopers were then required to fight in Africa. The BCP was enlarged to become a regiment, as the "Regimento de Caçadores Paraquedistas" or RCP. It included an operational battalion (11th Paratroopers Rifles or BCP 11) and a training battalion. By this time, the men were armed with the modern 7,62mm ArmaLite AR-10 battle rifle, a weapon previously not seen in Western military forces. The paratroopers liked the accuracy and mobility of the AR-10, but supplies were embargoed after initial deliveries were completed in 1960, and paratroopers were later issued the collapsible-stock variant of the m/961 (G3) rifle. To fight the various separatist guerrilla movements, additional Paratroopers battalions were created in the Portuguese African territories of Angola, Guinea and Mozambique.