The United Ulster Unionist Party (UUUP) was a unionist political party which existed in Northern Ireland between 1975 and 1984. It emerged from a division in the Vanguard Unionist Progressive Party in the late 1970s. Vanguard had traditionally opposed the concept of compulsory power sharing with nationalists enshrined in the Sunningdale Agreement, but after the failure of Sunningdale, the Northern Ireland Constitutional Convention was set up to provide a forum with the aim of finding a new settlement for Northern Ireland. During the proceedings the leader of Vanguard, William Craig, proposed a voluntary coalition with the nationalist Social Democratic and Labour Party. Many in Vanguard found this anathema, including the party's deputy leader Ernest Baird, Mid Ulster MP John Dunlop and East