In December 1972, MNLF rebels landed in Barrio Tran in Lebak, Cotabato, to establish the rebels’ first logistical base in Mindanao. During that period, about 2,000 of its 6,000 fighting force were already armed with sophisticated weapons.

Source: M.D.Vitug & G.M.Gloria, Under The Crescent Moon; Rebellion Mindanao; Ateneo Center for Social Policy and Public Affairs