▁implementation ▁of ▁the ▁signed ▁agre ements , ▁the ▁safety ▁of ▁all ▁United ▁Nations ▁personnel ▁in ▁the ▁country ▁and ▁providing ▁assistance ▁and ▁facilities ▁to ▁the ▁Author ity . ▁It ▁also ▁ur ged ▁the ▁Camb od ian ▁parties ▁to ▁dem obil ise ▁their ▁military ▁forces ▁before ▁the ▁elections . ▁ ▁Resol ution ▁ 7 4 5 ▁finally ▁called ▁on ▁Member ▁States ▁to ▁provide ▁assistance ▁to ▁the ▁Author ity ▁and ▁support ▁the ▁United ▁Nations ▁plan ▁in ▁Camb odia , ▁including ▁program mes ▁for ▁special ised ▁ag encies , ▁the ▁re h abil itation ▁and ▁rep atri ation ▁of ▁disp la ced ▁persons ▁and ▁repair ing ▁infrastr ucture . ▁It ▁also ▁required ▁the ▁Secretary - General ▁to ▁report ▁back ▁by ▁ 1 ▁June ▁ 1 9 9 2 ▁on ▁develop ments , ▁and ▁subsequently ▁in ▁September ▁ 1 9 9 2 , ▁January ▁ 1 9 9 3 ▁and ▁April ▁ 1 9 9 3 . ▁ ▁UN TAC ' s ▁author ised ▁strength ▁was ▁ 2 2 , 0 0 0 ▁personnel , ▁and ▁the ▁cost ▁of ▁the ▁operation ▁was ▁US $ 1 . 6 ▁billion . ▁It ▁became ▁oper ational ▁on ▁ 1 5 ▁March ▁ 1 9 9 2 , ▁absor bing ▁the ▁ ▁United ▁Nations ▁Adv ance ▁Mission ▁in ▁Camb odia ▁which ▁existed ▁prior ▁to ▁UN TAC . ▁ ▁See ▁also ▁ ▁List ▁of ▁United ▁Nations ▁Security ▁Council ▁Resol utions ▁ 7 0 1 ▁to ▁ 8 0 0 ▁( 1 9 9 1 – 1 9 9 3 ) ▁ ▁Modern ▁Camb