In Irish republican areas the themes of murals can range from the 1981 Irish hunger strike , with particular emphasis on strike leader Bobby Sands ; murals of international solidarity with revolutionary groups are equally common , as are those which highlight a particular issue , for example the Ballymurphy Massacre or the McGurk 's Bar bombing . In working class unionist communities , murals are used to promote Ulster loyalist paramilitary groups such as the Ulster Defence Association and Ulster Volunteer Force and commemorate their deceased members . However traditional themes such as William III of England and the Battle of the Boyne , the Battle of the Somme and the 36th Ulster Division are equally common
McGurk 's Bar bombing
McGurk's Bar bombing
Murals in Northern Ireland