Paul O'Brien, a military historian, works for the Office of Public Works at the Royal Hospital Kilmainham. The author of ten books, he has written extensively on the military strategy of the 1916 Rising, as well as the British army in Ireland. Two of his books, Blood on the Streets and Crossfire, were turned into the critically acclaimed drama-documentary A Terrible Beauty. He lives in Santry, Dublin, with his wife, daughter and two cats. Stay up to date with the author at: paulobrienauthor.ie