To surprise the enemy, attacking and disappearing without a trace. To harass, sabotage, ambush. Throughout the 20th Century the majority of guerrilla warfare centred around the confrontation between right and left ideologies. This episode looks at how Mao Zedong, Fidel Castro, Josip Broz Tito and Võ Nguyên Giáp used Guerrilla Warfare to overcome a militarily superior enemy.