During the Liberation War of the 1970s Rhodesian forces laid an extensive series of minefields along the borders between Zimbabwe (then Rhodesia) and Zambia and Mozambique in an attempt to prevent insurgents from moving in and out of the country for training and re-supplies.
Initially anti-personnel mines were laid in very dense belts (reportedly 5,500 mines per kilometer of frontage) to form a “cordon sanitaire”. Over time the cordon sanitaire was breached or was subject to erosion and so, in many sections, a second belt of directional fragmentation mines guarded by anti-personnel mines were laid “inland” of the cordon sanitaire.
Anti-tank mines were used extensively by the insurgents but the majority were either detonated by vehicles or were cleared in the years immediately after the war.


