Question: For which car bombing in Northern Ireland did Tim Hegarty and Ross Graham release a support album?
Context: The Thiepval Barracks bombing was a double car bomb attack carried out by the Provisional Irish Republican Army (IRA) on 7 October 1996.  The bombs exploded inside Thiepval Barracks, the British Army headquarters in Northern Ireland.  One British soldier was killed and 31 people were injured.  This bombing was the first major attack on a military base in Northern Ireland since the ending of the IRA's ceasefire on 9 February 1996, when it exploded a large bomb in London's Docklands. Prostitution in Northern Ireland is governed by the Human Trafficking and Exploitation (Criminal Justice and Support for Victims) Act (Northern Ireland) 2015, which makes it illegal to pay for sex in Northern Ireland.  Prior to the act coming into effect, prostitution in Northern Ireland was regulated by the same or similar laws to those in England and Wales, as it is elsewhere in the United Kingdom.  At that time, prostitution in Northern Ireland was legal subject to a number of restraints which controlled certain activities associated with prostitution, such as soliciting, procuring, living on the proceeds of prostitution (pimping), exploitation of prostitutes, under-age prostitution, and keeping a brothel.  However, devolution provided the opportunity for separate legislation in Northern Ireland. The 2010 Newry car bombing occurred on the night of 22 February 2010.  A car bomb exploded outside a courthouse in Newry, Northern Ireland.  The car bomb damaged the courthouse and other buildings in the area.  There were no fatalities or injuries. Timothy John Hegarty, better known as Tim Hegarty (born 7 November 1965 in Derry, Northern Ireland) is a Northern Irish musician and songwriter. The Omagh bombing was a car bombing that took place on 15 August 1998 in Omagh, County Tyrone, Northern Ireland.  It was carried out by a group calling themselves the Real Irish Republican Army, a Provisional Irish Republican Army (IRA) splinter group who opposed the IRA's ceasefire and the Good Friday Agreement.  The bombing killed 29 people (including a woman pregnant with twins) as well as injuring some 220 others, a death toll even higher than that of any single incident during what were considered 'the Troubles' (1968-10 April 1998).  Telephoned warnings had been sent about 40 minutes beforehand, but were claimed to be inaccurate and police had inadvertently moved people towards the bomb. On 19 December 1975, two coordinated attacks were carried out by the Ulster Volunteer Force (UVF) in pubs either side of the Irish border.  The first attack, a car bombing took place outside Kay's Tavern, a pub in Dundalk in the Republic of Ireland close to the border.  The second attack, a gun and bomb attack, took place at Donnelly's Bar & Filling Station in Silverbridge, County Armagh just across the border inside Northern Ireland.  The attack has been linked to the Glenanne gang, a group of Loyalist militants who were either members of the UVF, the Ulster Defence Regiment (UDR), the Royal Ulster Constabulary (RUC) and the closely linked UVF paramilitary the Red Hand Commando (RHC), some of the Glenanne gang were members of the two of these organizations at the same time like gang leaders Billy Hanna who was in both the UVF and the UDR and who fought for the British Army during the Korean War and John Weir (loyalist) who was in the UVF and was a Sergeant in the RUC.  At least 25 British soldiers and police officers were named as members of the gang. The Ballygawley bus bombing was a roadside bomb attack by the Provisional Irish Republican Army (IRA) on a bus carrying British soldiers in Northern Ireland.  It occurred in the early hours of 20 August 1988 in the townland of Curr near Ballygawley, County Tyrone.  The attack killed eight soldiers and wounded another 28.  It was the second-deadliest attack on the British Army in Northern Ireland during the Troubles, after the Warrenpoint ambush of 1979.  In the wake of the bombing the British Army began ferrying its troops in and out of County Tyrone by helicopter. The St Andrews Agreement (Irish: "Comhaontú Chill Rímhinn" ; Ulster Scots: "St Andra's 'Greement", "St Andrew's Greeance" or "St Andrae's Greeance") was an agreement between the British and Irish governments and Northern Ireland's political parties in relation to the devolution of power in the region.  The agreement resulted from multi-party talks held in St Andrews in Fife, Scotland, from 11 to 13 October 2006, between the two governments and all the major parties in Northern Ireland, including the two largest, the Democratic Unionist Party (DUP) and Sinn Féin.  It resulted in the restoration of the Northern Ireland Assembly, the formation (on 8 May 2007) of a new Northern Ireland Executive and a decision by Sinn Féin to support the Police Service of Northern Ireland, courts and rule of law. On September 20, 1984, the Shi'a Islamic militant group Hezbollah, with support and direction from the Islamic Republic of Iran, carried out a suicide car bombing targeting the U.S. embassy annex in East Beirut, Lebanon.  The attack killed 24 people. Across the Bridge of Hope is a compilation album created and recorded in support of victims of the Omagh bombings, by Tim Hegarty and Ross Graham.  The album was released on July 13, 1999, by White Records.  The album included various songs by Irish artists, as well as two poem recitations by actor Liam Neeson.  The album draws its name from the second of these two poems, written by twelve-year-old Sean McLaughlin, who wrote it shortly before he was killed in the bombing.
Answer: Omagh bombing