Note there’s a second memorial just in front of the chapel, far left of shot.
And here’s the memorial across the road.
The Battle of Atbara took place on 8th April 1898 at the confluence of the Nile & Atbara rivers during the Second Sudan War. British & Egyptian troops under Kitchener defeated the Dervish troops of the Khalif, killing some 2,000 of them; British dead amounted to eighty killed, the 1st Queen’s Own Cameron Highlanders suffering the most with forty four casualties, including three officers killed.
Cameron Highlanders forming square in the Sudanese desert (top), and with Egyptian troops (bottom).
This memorial was unveiled on 10th December 1898, eight months after the battle.