sentences:  Heavy weapons deployed against the RhACR during border battles included 122mm rocket launchers, 75mm recoilless rifles and 82mm mortars.The TM46 anti-tank mine, often boosted, accounted for most of the regiment's casualties in the internal insurgency conflict.The regiment took part in a number of static but intense battles, notably at Mount Selinda against the Mozambican Army (where a Bronze Cross was awarded to 2nd Lieutenant Rae) in 1977 and at Chirundu in October 1978, where heavy-machine gun, artillery and mortar duels took place between D Squadron and elements of the Zambian Army over a period of three days and nights near the Otto Beit Bridge.