Conor Cruise O’BrienDonal Conor David Dermot Donat Cruise O'Brien (3 November 1917 – 18 December 2008), often nicknamed "The Cruiser", was an Irish diplomat, politician, writer, historian and academic, who served as Minister for Posts and Telegraphs from 1973 to 1977, a Senator for Dublin University from 1977 to 1979, a Teachta Dála (TD) for the Dublin North-East constituency from 1969 to 1977, and a Member of the European Parliament (MEP) from January 1973 to March 1973.
His opinion of Britain's role in Ireland subsequent to the partition of the island and the independence of the Free State in 1921 changed during the 1970s, in response to the outbreak of The Troubles. He now saw opposing nationalist and unionist traditions as irreconcilable, and switched from a nationalist to a unionist view of Irish politics and history, and from opposition to support for partition. Cruise O'Brien's outlook was radical and seldom orthodox. He summarised his position as intending "to administer an electric shock to the Irish psyche".