 His visits to the Western Front, with the honorary rank of colonel in the Canadian Army, resulted in his 1916 book "Canada in Flanders", a three-volume collection that chronicled the achievements of Canadian soldiers on the battlefields.Aitken also wrote several books after the war, including "Politicians and the Press" in 1925 and "Politicians and the War" in 1928.Aitken became increasingly hostile towards the Prime Minister, H. H. Asquith whom he considered to be mismanaging the war effort.