The #BattleOfẤpBắc was fought & won by #VietCong (#NLFSV) on #ThisDayInHistory in 1963. A small (350 guerrillas) but well-prepared force blocked an attack by 1400 heavily-armed #SouthVietnam troops & US "advisers". The VC took just 56 casualties, vs 202 and 5 helicopters lost.