 Katanga became part of the Congo Free State, which was annexed by Belgium in 1908 after an international outcry over the killings, brutality and slavery by Leopold's regime.In the early 20th century as Katanga's mining industries developed, some British in Northern Rhodesia, representing the losers in the scramble for Katanga, thought of Stairs as a mercenary and traitor to the British Empire.Captain Stairs is commemorated with three identical tablets (c. 1902) in the vestibule of Mackenzie Building at Royal Military College of Canada, St. George's Cathedral (Kingston, Ontario) and in Rochester Cathedral near Chatham, England.