Mezue ahịrịokwu na-esonụ: Davidson mechara rụọ ọrụ na South Africa na Agha Anglo-Zulu nke 1879, nke ọ merụrụ ahụ n'agha ikpeazụ nke agha ahụ na Ulundi. E buliri ya n'ọkwa onye isi n'ọnwa Jenụwarị n'afọ 1880, n'otu afọ ahụ ọ lụrụ ọgụ nke abụọ nke Agha Anglo-Afghan nke Abụọ. A họpụtara Lord Napier ka ọ bụrụ Gọvanọ nke Gibraltar na 1876, ebe Davidson ghọkwara "onye enyemaka ya" site na Disemba 1881 ruo Disemba 1882. Mgbe nke a gasịrị, ọ laghachiri ije ozi na British India, ebe e buliri ya n'ọkwa onye isi ma zigara ya na Ngalaba Ordnance India. Nkwado ndị ọzọ na Royal Horse Artillery sochiri na Jenụwarị 1896, mgbe e buliri ya n'ọkwa lieutenant colonel, na colonel na Jenụwarị 1900. Nke a dabara na nhọpụta ya na ndị ọrụ nke Royal Artillery na South Africa n'oge Agha nke Abụọ nke Boer. O duziri ndị Royal Horse Artillery na njem ha iji belata Kimberley, ma nọrọ na ọtụtụ ọgụ ndị ọzọ, gụnyere agha nke
Paardeberg, Poplar Grove, na Driefontein. A kpọtụrụ Davidson aha n'ozi maka ihe ndị pụtara ìhè o mere n'oge agha ahụ. Ọ hapụrụ ọnọdụ ya na ndị ọrụ na Jenụwarị 1901, ma tinye ya na ndepụta ọkara ụgwọ, mana ọ laghachiri na ndị ọrụ na Ọktọba nke afọ ahụ. N'ihi ozi o jere n'agha ahụ, e nyere ya ihe nrite Queen's Medal, nke nwere ihe anọ e ji ekegide ya. N'ọnwa Eprel afọ 1901, a họpụtara ya ka ọ bụrụ Companion to the Order of the Bath. Mgbe agha ahụ gasịrị, ọ laghachiri Britain ebe ọ bụ Ọchịagha nke Ndị Ọrụ na-achịkwa Royal Artillery, North-Eastern District, tupu ọ hapụ ọkwa ahụ ma tinye ya na ndepụta ọkara ụgwọ ọnwa na Ọktọba 1904. Afọ atọ ka e mesịrị, na January 1907, ọ lara ezumike nká n'ọrụ agha.