It was eventually agreed that the executive functions of the Council would be limited to "tourism, conservation, and aspects of animal health", but this did not reassure the unionists, who saw any influence by the Republic over Northern affairs as a step closer to a
united Ireland. They saw their fears confirmed when SDLP councillor
Hugh Logue publicly described the Council of Ireland as "the vehicle that would trundle unionists into a united Ireland" in a speech at
Trinity College, Dublin. On 10 December, the day after the agreement was announced, loyalist paramilitaries formed the
Ulster Army Council – a coalition of loyalist paramilitary groups, including the
Ulster Defence Association and the
Ulster Volunteer Force, which would oppose the agreement. In January 1974, the Ulster Unionist Party narrowly voted against continued participation in the assembly and Faulkner resigned as leader, to be succeeded by the anti-Sunningdale
Harry West. The following month a
general election took place. The Ulster Unionists formed the
United Ulster Unionist Council (UUUC) as a coalition of anti-agreement unionists with the
Vanguard Progressive Unionist Party and the
Democratic Unionist Party to stand a single anti-Sunningdale candidate in each constituency. The pro-Sunningdale parties, the SDLP, the Alliance, the
Northern Ireland Labour Party and the "Pro Assembly Unionists" made up of Faulkner's supporters, were disunited and ran candidates against one another. When the results were declared, the UUUC had captured eleven of the twelve constituencies, several of which had been won on split votes. Only
West Belfast returned a pro-Sunningdale MP (
Gerry Fitt). The UUUC declared that this represented a democratic rejection of the Sunningdale Assembly and Executive, and sought to bring them down by any means possible. In March 1974, pro-agreement unionists withdrew their support for the agreement, calling for the Republic of Ireland to remove the
Articles 2 and 3 of its constitution first (these articles would not be revised until the
Good Friday Agreement of 1998). ==Collapse of the agreement==