Democratic Unionist Party

The Democratic Unionist Party (DUP) is a unionist, loyalist, British nationalist and national conservative political party in Northern Ireland. It was founded in 1971 during the Troubles by Ian Paisley, who led the party until 2008. It is currently led by Gavin Robinson, who initially stepped in as an interim after the resignation of Jeffrey Donaldson. It is the second-largest party in the Northern Ireland Assembly, and won five seats in the House of Commons of the United Kingdom at the 2024 election. The party has been mostly described as right-wing and socially conservative, being anti-abortion and opposing same-sex marriage. The DUP sees itself as defending Britishness and Ulster Protestant culture against Irish nationalism and republicanism. It is also Eurosceptic and supported Brexit.

The DUP evolved from the Protestant Unionist Party and has historically strong links to the Free Presbyterian Church of Ulster, the church Paisley founded. During the Troubles, the DUP opposed sharing power with Irish nationalists or republicans as a means of resolving the conflict, and likewise rejected attempts to involve the Republic of Ireland in Northern Irish affairs. It campaigned against the Sunningdale Agreement of 1973, the Anglo-Irish Agreement of 1985, and the Good Friday Agreement of 1998. In the 1980s, the DUP was involved in setting up the loyalist paramilitary movements Third Force and Ulster Resistance, the latter of which helped smuggle a large shipment of weapons into Northern Ireland.