Field Marshal Sir Henry Wilson, an Irishman who in June 1922 was assassinated on his doorstep in London by Irish republicans, was one of the most controversial British soldiers of the modern age. Before 1914 he did much to secure the Anglo-French alliance and was responsible for the planning which saw the British Expeditionary Force successfully despatched to France after the outbreak of war with Germany. A passionate Irish unionist, he gained a reputation...