with the ultimate objective of bringing about a united Ireland. As well as attacking military and political targets, it also bombed infrastructure and commercial targets in Northern Ireland and England. It believed that by damaging the economy and causing severe disruption, it could pressure the British government to negotiate a withdrawal from Northern Ireland. Manchester had been the target of earlier IRA bombs. Firebombs damaged city centre businesses in 1973 and 1974, for which a man was later imprisoned. In April 1974, a bomb exploded at Manchester Magistrates' Court, injuring twelve. In 1975, IRA bomb factories were found in Greater Manchester and five men were imprisoned for planning attacks in North West England. On 3 December 1992, the IRA detonated two small bombs in Manchester city centre, forcing police to evacuate thousands of shoppers. More than 60 were hurt by shattered glass and the blasts cost an estimated £10 million in damage and business losses. The Downing Street Declaration of 1993 allowed Sinn Féin, a political party associated with the IRA, to participate in all-party peace negotiations on condition that the IRA called a ceasefire. The IRA called a ceasefire on 31 August 1994. John Major's government, dependent on Ulster Unionist Party votes, then began insisting that the IRA must fully disarm before there could be any all-party negotiations. The IRA saw this as a demand for total surrender and believed the British were unwilling to hold negotiations. It ended its ceasefire on 9 February 1996 when it detonated a powerful truck bomb in Canary Wharf, one of the two financial districts of London. The blast killed two people and caused an estimated £150 million worth of damage. The IRA then planted five other devices in London within the space of 10 weeks. The IRA planned to carry out a similar bombing in Manchester. The city may have been chosen because it was one of the host cities of the Euro '96 football tournament, attended by visitors and media organisations from all over Europe, guaranteeing the IRA what Margaret Thatcher called the "oxygen of publicity". A Russia vs Germany match was to take place at Old Trafford in Manchester a day after the bombing. The year before, Manchester had also won its bid to host the 2002 Commonwealth Games, at the time the biggest multi-sport event ever to be staged in Britain. On 10 June 1996, multi-party negotiations began in