1 . ▁In ▁the ▁first ▁years ▁of ▁independence , ▁Bur und i ▁seemed ▁to ▁have ▁achieved ▁a ▁balance ▁between ▁eth nic ▁groups ▁which ▁brought ▁members ▁of ▁the ▁different ▁eth nic ▁groups ▁into ▁government , ▁moder ated ▁in ▁part ▁by ▁the ▁m w ami ▁( king ) ▁M w amb ut sa ▁IV ▁who ▁was ▁popular ▁with ▁all ▁groups ▁but ▁was ▁himself ▁T ut si . ▁Both ▁T ut si , ▁H ut u ▁and ▁Gan wa ▁were ▁part ▁of ▁the ▁dominant ▁political ▁party , ▁the ▁Union ▁for ▁National ▁Progress ▁( Union ▁pour ▁le ▁Pro gr ès ▁national , ▁U PR ON A ). ▁In ▁October ▁ 1 9 6 1 , ▁shortly ▁before ▁the ▁date ▁scheduled ▁for ▁independence , ▁the ▁Bur und ian ▁Prime ▁Minister ▁Prince ▁Louis ▁R w agas ore ▁was ▁assass in ated , ▁raising ▁eth nic ▁t ensions ▁in ▁the ▁country . ▁After ▁a ▁period ▁of ▁rule ▁by ▁T ut si ▁prime ▁minister s , ▁M w amb ut sa ▁appointed ▁Bur und i ' s ▁first ▁H ut u ▁leader , ▁Pierre ▁Ng end and um we , ▁but ▁Ng end and um we ▁was ▁assass in ated ▁in ▁January ▁ 1 9 6 5 ▁by ▁a ▁R wand an ▁T ut si . ▁E lections ▁held ▁in ▁May ▁ 1 9 6 5 ▁took ▁place ▁in ▁an ▁atmosphere ▁of ▁strong ▁eth nic ▁t ension . ▁H ut u ▁candidates ▁gained ▁a ▁majority , ▁but ▁M w amb ut sa ▁de posed ▁the ▁H ut u ▁Prime ▁Minister ▁Joseph