Rise of Neville Chamberlain in 1914 prevented implementation of his plans in Birmingham. With the outbreak of World War I in August 1914, Chamberlain became deeply involved in the war effort. In addition to his duties as councillor, Chamberlain helped recruit men for the Royal Warwickshire Regiment and set up funds for injured soldiers. Late in 1914, he became an alderman of Birmingham, and the following year, became Lord Mayor. Chamberlain's biographer, Robert Self, suggested that as Joseph Chamberlain had died the previous year, the honour was due to Neville Chamberlain's hard work rather than to any family influence. As a Lord Mayor in
Rise of Neville Chamberlain action during the Battle of Cambrai, and in February 1918, Norman's body was found—a great blow to Neville Chamberlain, who described Norman as "the most intimate friend I had". Through the rest of his career, Neville Chamberlain laboured to further the ideals of his cousin, and wrote his biography—the only book he ever wrote. Some historians relate Norman's death to a hatred of war on his cousin's part which led to appeasement; according to Chamberlain's biographer Nick Smart, the death did not cause Chamberlain to hate World War I, and any influence on his later positions is far from certain.