Kammala wannan jumla: A lokacin da aka fara Yaƙin Duniya na Farko, Coldstream Guards yana cikin rukunin farko na Burtaniya da suka isa Faransa bayan Britaniya ta ayyana yaƙi da Jamus. A cikin yaƙe-yaƙe na gaba, ya sha wahala sosai, a lokuta biyu ya rasa dukkan jami'ansa. A yakin farko na Ypres, an hallaka rukunin farko na farko: a ranar 1 ga Nuwamba zuwa 150 maza da Lt Quartermaster. Rundunar ta yi yaƙi a Mons, Loos, da Somme,
Ginchy da kuma a cikin 3rd Battle of Ypres. Har ila yau, rundunar ta kafa rundunar soja ta 4 (Pioneer), wadda aka rushe bayan yakin, a shekarar 1919. Rundunar ta 5 ba ta bar Birtaniya ba kafin a rushe ta.