When Lloyd George came to write his War Memoirs in the 1930s, there had been over a decade of publishing in the field, and books written by wartime political and military figures were highly critical of Lloyd George. In the War Memoirs, he engaged with his critics and fought and re-fought wartime controversies. He was especially critical towards wartime military leaders such as Field Marshals Douglas Haig and William Robertson, who had been determined to concentrate the British military effort on the Western Front, and whose persistence resulted in the greatest casualties in British military history. Yet he also did not spare figures such as wartime Foreign Secretary Sir Edward Grey, with whom, after the war, he had been engaged in intense political controversy, and whom Lloyd George felt must share significant blame for the outbreak of a general conflict i 1914.