▁implementation ▁of ▁United ▁Nations ▁Security ▁Council ▁Resol ution ▁ 2 4 2 . ▁ ▁The ▁resolution ▁was ▁passed ▁on ▁the ▁same ▁day ▁the ▁Ag re ement ▁on ▁Dis eng agement ▁was ▁signed ▁between ▁Isra eli ▁and ▁Sy rian ▁forces ▁on ▁the ▁Gol an ▁He ights , ▁finally ▁establish ing ▁a ▁ce ase fire ▁to ▁end ▁the ▁ 1 9 7 3 ▁Y om ▁K ipp ur ▁War . ▁ ▁The ▁Force ▁has ▁since ▁performed ▁its ▁functions ▁with ▁the ▁full ▁co operation ▁of ▁both ▁sides . ▁The ▁mand ate ▁of ▁U ND OF ▁has ▁been ▁renew ed ▁every ▁six ▁months ▁since ▁ 1 9 7 4 ▁( most ▁recently ▁until ▁ 3 1 ▁December ▁ 2 0 1 9 ). ▁UN T SO ▁( Un ited ▁Nations ▁Tru ce ▁Super vision ▁Organ ization ) ▁and ▁U ND OF ▁are ▁operating ▁in ▁the ▁zone ▁and ▁continue ▁to ▁super v ise ▁the ▁ce ase fire . ▁Before ▁the ▁Sy rian ▁Civil ▁War , ▁the ▁situation ▁in ▁the ▁Israel - S y ria ▁ce ase fire ▁line ▁had ▁remained ▁quiet ▁and ▁there ▁had ▁been ▁no ▁serious ▁inc idents . ▁ ▁During ▁the ▁Sy rian ▁Civil ▁War , ▁the ▁buffer ▁zone ▁between ▁Isra eli ▁and ▁Sy rian ▁forces ▁became ▁a ▁scene ▁of ▁the ▁Q une it ra ▁cl ash es , ▁forcing ▁many ▁UN ▁observer ▁forces ▁to ▁re cons ider ▁their ▁mission ▁due ▁to ▁safety ▁issues . ▁The ▁fighting ▁between ▁Sy rian ▁Army ▁and ▁Sy rian ▁O pp osition ▁came ▁to ▁international ▁attention ▁when ▁on ▁March ▁ 2