While the world was aggressively preparing for the First World War between 1900 and 1914, many people and organisations in Britain and Europe were boldly campaigning for peace. This is not generally remembered because that war destroyed so much, even the memory that many people had tried to stop it happening.
So amongst the military and political pressures of preparing for war, with its Boer War inadequacies, Dreadnought battleship-building, Baden Powell boy-scouting and much more,…