Letter from Corporal Louis Hahn to Roger Casement (1864-1916). Hahn's letter reports on the activities of the Irish Brigade in early November 1915 and refers specifically to a number of men found guilty of drunkenness. The Irish Brigade had been set up by Casement from Irish prisoners in German prisoner of war camps with the intention of assisting the fight for Irish freedom. The venture was ultimately unsuccessful.This letter is taken from a collection of letters, poems, articles and other documents of Roger Casement and his family covering his career in the British Diplomatic Service as well as his activities in the Irish Revolutionary movement, 1889-1945. Sir Roger Casement was a humanitarian and Irish Nationalist. Casement believed that an Irish insurrection would be crushed unless it received substantial assistance from Germany. He spent eighteen months in Germany, arriving first as an envoy of Irish-American leaders, attempting to encourage Germany to support Irish separatist aspirations by providing arms. Casement succeeded in securing limited German support but his attempt to form a brigade of Irish soldiers in German prisoner of war camps to fight against Britain was largely unsuccessful. When it became clear that adequate help would not be forthcoming he travelled to Ireland by submarine. Casement landed and was arrested at Banna Strand, County Kerry on Good Friday 1916. He was tried in the Old Bailey for treason and subsequently executed by hanging at Pentonville Prison on 3 August 1916.