 Complete the following phrase:  Following the end of World War II, the tactic was successfully used in Southeast Asia by the French against the Việt Minh in the Battle of Nà Sản. The French suffered a disaster in the Battle of Dien Bien Phu, when General Võ Nguyên Giáp deployed unexpectedly-heavy concentrations of anti-aircraft artillery around the French garrison and successfully disrupted aerial resupply. Later, hedgehog defence was central in the US Marines successful defence of 