Ultimately, however, the Sunningdale Agreement was brought down by mass action on the part of loyalist paramilitaries (primarily the Ulster Defence Association, at that time over 20,000 strong) and workers, who formed the Ulster Workers' Council.
Na kraju je Saningdejlski sporazum oborila je masovna akcija dijela lojalističkih paravojski (prije svega Ulsterski obrambeni savez, koji je tada imao oko 20.000 članova) i radnika, koji su osonvali Ulstersko radničko vijeće (UWC).