As part of the agreement, it was proposed to build on the existing Inter-Parliamentary Commission in English-Irish. Prior to the agreement, the body was composed only of parliamentarians from the British and Irish assemblies. In 2001, as proposed by the agreement, it was extended to include parliamentarians of all members of the Anglo-Irish Council. There is no official breakdown of how nationalist and unionist communities voted, but CAIN, the Internet`s archives of conflicts, estimated that the overwhelming majority (up to 97%) Members of Northern Ireland`s predominantly nationalist community voted “yes.” Their estimate of the predominantly Protestant Unionist community for the agreement was between 51 and 53 per cent. The nationalist community was generally expected to approve the agreement. In the run-up to the vote, union views seemed to be divided between those who supported the agreement, those who opposed the principle of the agreement and those who welcomed an agreement, but who were still very concerned about issues such as the release of prisoners and the role of paramilitaries and related parties (particularly Sinn Féin). Supporters of the agreement feared that there would be no majority (or small majority) of the Unionist community in favour of the agreement and that it would damage its credibility. Although the peace process initially progressed to a large extent, tensions intensified in 2001, with the intensification of sectarian conflicts, riots, political differences and the process of dismantling. Real IRA bombs on the BBC and a business district in London threatened to derail the peace process.   The Holy Cross conflict in north Belfast from June 2001 would become an important episode of sectarian conflicts. Widespread riots broke out in July and in the same month, the Ulster Freedom Fighters (UFF) withdrew from the Good Friday Agreement, while the Progressive Unionist Party (PUP) withdrew from the “current phase” of the peace process. On 26 July, the two extremists of the Ulster Unionist Party (UUP), David Burnside and Jeffrey Donaldson, both called for their party to withdraw from the support of the new Stormont assembly.-  Both views were recognized as legitimate. For the first time, the Irish government agreed, in a binding international agreement, that Northern Ireland was part of the United Kingdom.  The Irish Constitution has also been amended to implicitly recognize Northern Ireland as part of the sovereign territory of the United Kingdom provided that the majority of the population of the island`s two jurisdictions has agreed to a unified Ireland. On the other hand, the language of the agreement reflects a change in the UK`s emphasis on the one-for-eu law to United Ireland.  The agreement therefore left open the question of future sovereignty over Northern Ireland.  This year marks the twentieth anniversary of the Belfast Agreement, better known as the Good Friday Agreement, signed in Northern Ireland on 10 April 1998.