- The Post Office workers who were enrolled in the 24th Middlesex Rifle Volunteer Corps volunteered for service with the Cable and Telegraph Companies, Royal Engineers during the 1882 campaign in Egypt against Arabi Pasha. This service was recognised by the award of the Battle Honour 'Egypt 1882', to 24th Middlesex Rifle Volunteer Corps, to be emblazoned on the Rifle Regiment's badges, clothing and appointments. It marks the first Battle Honour awarded to predecessor units of The London Regiment.
- Yeomanry and Volunteer Regiments did not serve overseas until the Boer War. They did not serve as units during the Boer War, but supplied considerable numbers of volunteers who served in South Africa with Regular Regiments, the City Imperial Volunteers and the Imperial Yeomanry, and in some specially formed volunteer units.
- A Battalion of Rough Riders was raised in December 1899 for South Africa service. Returning members of the Battalion formed 1st County of London Yeomanry later re-designated City of London Yeomanry (The Rough Riders). Similarly three Sharpshooter Battalions were formed in 1900, for South Africa service. The veterans of these Battalions on return formed 3rd County of London Yeomanry (The Sharpshooters).
- For these services, units were awarded the 'South Africa' Battle Honour with varying dates between 1899 and 1902. More details are given in Part 2 - Background to the Battle Honours.