 Pari gbolohun ti o tẹle: Moores ti ṣe igbimọ sinu Royal Army Medical Corps bi oniṣẹ abẹ-olori ni ọjọ 1 Kínní 1890, o si ṣiṣẹ ni Chitral Relief Expedition ni ọdun 1895, ni itọju iṣoogun ti 1st Battalion Gordon Highlanders ati No. 8 Mountain Battery Royal Artillery. O ṣiṣẹ ni Ogun Boer Keji ni South Africa 18991902, ti a so mọ awọn olutọju Scots ti o kopa ninu agbara iranlọwọ Kimberley, o si wa ni awọn ogun ti Belmont, Enslin ati : Odò Modder Oṣù kọkànlá ọdún 1899, níbi tí ó ti fara pa. Fun iṣẹ rẹ, o ni igbega si oniṣẹ abẹ nla ni 29 Kọkànlá Oṣù 1900, o si mẹnuba lẹẹmeji ninu awọn ifiranṣẹ. Lẹyìn tí ogun parí, Moores kúrò ní Cape Town lọ sí England lórí ọkọ òkun SS Simla ní July 1902. 