Christian denominations have not done a lot of “slaughtering” of one another since the middle of the seventeenth century.
Although armed hostilities between Catholics and Protestants largely subsided after the 1921 agreement, violence erupted again in the late 1960s; bloody riots broke out in Londonderry in 1968 and in Londonderry and Belfast in 1969. British troops were brought in to restore order, but the conflict intensified as the IRA and Protestant paramilitary groups carried out bombings and other acts of terrorism. This continuing conflict, which lingered into the 1990s, became known as "the Troubles." Despite efforts to bring about a resolution to the conflict during the 1970s and 80s, terrorist violence was still a problem in the early 90s and British troops remained in full force. More than 3,000 people have died as a result of the strife in Northern Ireland.
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