The Downing Street Declaration of 1993 outlined that: 1) The people of Northern Ireland have the right to decide their own future without interference from London or Dublin. 2) Northern Ireland could become part of a united Ireland only if a majority of Northern Ireland's population approved it. 3) The island of Ireland as a whole had the right to resolve issues without outside interference. 10 months after the declaration, paramilitary groups on both sides agreed to ceasefires, paving the way for future peace negotiations.