 Complete the following phrase:  After the outbreak of the Second Boer War in October 1899, a corps of imperial volunteers from London was formed in late December 1899. The corps included infantry, mounted infantry and artillery divisions and was authorized with the name City of London Imperial Volunteers. It proceeded to South Africa in January 1900, returned in October the same year, and was disbanded in December 1900. Wilson was appointed a lieutet of the mounted infantry division on 3 January 1900, with the temporary rank of Lieutet in the Army, and served as such until the corps was disbanded. He was present at the 