. ▁The ▁two ▁units ▁are ▁also ▁task ed ▁with ▁mount ing ▁the ▁guard ▁of ▁honour ▁for ▁visit ing ▁dign itar ies . ▁Public ▁duties ▁were ▁also ▁performed ▁by ▁the ▁Canadian ▁Gu ards ▁until ▁ 1 9 7 0 , ▁when ▁the ▁unit ▁was ▁reduced ▁to ▁nil - str ength , ▁and ▁moved ▁to ▁the ▁Supp lement ary ▁Order ▁of ▁Battle . ▁ ▁The ▁Canadian ▁Army ▁also ▁oper ates ▁a ▁summer ▁public ▁duties ▁det achment ▁known ▁as ▁the ▁Cer emon ial ▁Guard , ▁which ▁assumes ▁public ▁duties ▁in ▁Ott awa ▁from ▁late - J une ▁to ▁late - August . ▁The ▁Cer emon ial ▁Guard ▁is ▁made ▁up ▁of ▁regular s ▁or ▁res erv ists ▁of ▁the ▁Canadian ▁Army , ▁although ▁it ▁membership ▁is ▁also ▁augment ed ▁by ▁members ▁regular s ▁and ▁res erv ists ▁of ▁the ▁Royal ▁Canadian ▁Air ▁Force , ▁and ▁the ▁Royal ▁Canadian ▁Navy . ▁Public ▁duties ▁undert aken ▁by ▁the ▁Cer emon ial ▁Guard ▁includes ▁sent ry ▁duties ▁at ▁the ▁National ▁War ▁Memorial , ▁R ide au ▁Hall , ▁as ▁well ▁as ▁performing ▁the ▁Ch anging ▁of ▁the ▁Guard ▁ceremony ▁in ▁Parliament ▁Hill , ▁and ▁the ▁Fort iss imo ▁Sun set ▁Cer em ony . ▁M embers ▁of ▁the ▁Cer emon ial ▁Guard ▁wear ▁the ▁uniform s ▁of ▁the ▁Canadian ▁foot ▁gu ards , ▁as ▁they ▁have ▁histor ically ▁staff ed ▁the ▁summer ▁public ▁duties ▁det achment , ▁before ▁membership ▁in ▁the ▁Cer emon ial ▁Guard ▁was ▁opened ▁to ▁the ▁entire ▁Canadian ▁Ar med ▁Forces . ▁The ▁Cer emon ial