 But never again were pigeons called upon to perform such a tremendous public service as that which they had maintained during the siege of Paris and Italy.Major-General Donald Roderick Cameron, then Commandant of the Royal Military College of Canada in Kingston, Ontario recommended an international pigeon service for marine search and rescue and military service in a paper entitled "Messenger Pigeons, a National Question".Sir Charles Hibbert Tupper, then Minister of Marine and Fisheries supported the pigeon policy.