the medium-term strategy was to restore self-government to Northern Ireland on a basis that was acceptable to both unionists and nationalists. Agreement proved elusive, however, and the Troubles continued throughout the 1970s, 1980s, and the 1990s within a context of political deadlock. The existence of "no-go areas" in Belfast and Derry was a challenge to the authority of the British government in Northern Ireland, and the British Army demolished the barricades and re-established control over the areas in Operation Motorman on 31 July 1972. Sunningdale Agreement and UWC strike In June 1973, following the publication of a British White Paper and a referendum in March on the status of Northern Ireland, a new parliamentary body, the Northern Ireland Assembly, was established. Elections to this were held on 28 June. In October 1973, mainstream nationalist and unionist parties, along with the British and Irish governments, negotiated the Sunningdale Agreement, which was intended to produce a political settlement within Northern Ireland, but with a so-called "Irish dimension" involving the Republic. The agreement provided for "power-sharing" – the creation of an executive containing both unionists and nationalists; and a "Council of Ireland" – a body made up of ministers from Northern Ireland and the Republic, designed to encourage cross-border co-operation. Unionists were split over Sunningdale, which was also opposed by the IRA, whose goal remained nothing short of an end to the existence of Northern Ireland as part of the UK. Many unionists opposed the concept of power-sharing, arguing that it was not feasible to share power with those (nationalists) who sought the destruction of the state. Perhaps more significant, however, was the unionist opposition to the "Irish dimension" and the Council of Ireland, which was perceived as being an all-Ireland parliament-in-waiting. Remarks by a young Social Democratic and Labour Party (SDLP) councillor, Hugh Logue, to an audience at Trinity College Dublin that Sunningdale was the tool "by which the Unionists will be trundled off to a united Ireland" also damaged chances of significant unionist support for the agreement. In January 1974, Brian Faulkner was narrowly deposed as UUP leader and replaced by Harry West, although Faulkner retained his position as Chief Executive in the new government. A UK general election in February 1974 gave the anti-Sunningdale unionists the opportunity to test unionist opinion with the slogan "Dublin is only a Sunningdale away", and the result galvanised their support: they won 11 of