 Ramba uchinyora ndima iyi - Douglas akashanda muHondo yechipiri yeBoer kubva muna 1899 kusvika pakutanga kwa1901. Pakutanga aive Assistant Adjutant-General paMahofisi makuru muSouth Africa kubva musi wa9 Gumiguru 1899, akabva ashanda seADC uye Chief of Staff kuna Ishe Methuen, General Officer Commanding 1st Division. Yaiva iri basa raakatora chikamu muHondo yeModder River November 1899 uye Hondo yeMagersfontein 10-11 Zvita 1899, umo kudzivirira simba reBoer kwakakunda mauto eBritish ari kufambira mberi pakati pekurasikirwa kwakanyanya kune vekupedzisira. Douglas akanongedzerwa mumashoko aLord Methuen achirondedzera hondo yacho. Akakwidziridzwa pachigaro chemunharaunda chemajor general ndokuitwa Mutungamiriri we9th Infantry Brigade musi wa 10 Kukadzi 1900, nguva pfupi pamberi peRuzorwo rweKimberley. Pashure Pokukombwa kweMafekingDouglas akagadzwa kuva Mutungamiriri weMafeking nedunhu rakapoteredza musi wa 28 Nyamavhuvhu 1900. Chikamu chevakuru vakuru chakasimbiswa nokuda kwe basa rakasiyana mumunda mukutanga kwa1901 asi rakanyorwa kusvika pakugadzwa kwekutanga musi wa10 Kukadzi 1900. 