Letter from Sir William Robert Robertson (1860-1933) to Edward Carson (1854-1935). Carson was a prominent Unionist Politician. Originally a practicing solicitor from Dublin, Carson's opposition to the proposed third Home Rule bill made him the figure head of Unionism throughout the island. He was the centerpiece of the speaking tour that culminated in Ulster Day (28 September 1912), when just under half a million signed Ulster's solemn league and covenant pledging to use ‘all means which may be found necessary to defeat the present conspiracy to set up a home rule parliament in Dublin’. Carson inaugurated the Larne gunrunning in 1914 which armed the UVF, many of whom Carson would encourage to join the British Army throughout the First World War. Robertson, field marshal, served as Chief of the Imperial General Staff (CIGS) from 1916 to 1918 during the First World War. Robertson frequently clashed with David Lloyd-George (1863-1945), the minister for munitions and later Prime Minister over the conduct of the war. Robertson was the first and only British Army soldier to rise from private soldier to field marshal..