 Complete the following phrase:  In 1979, Pope John Paul II visited Drogheda as part of his five-stop tour of Ireland. He arrived less than a month after the IRA assassination of Lord Mountbatten, Queen Elizabeths cousin, in Mullaghmore. On 29 September 1979, he arrived in Dublin, where he gave his first mass. He then addressed 300,000 people in Drogheda, where he appealed on his knees to paramilitaries to end the 