While the riots continued , the introduction of British Army troops in the Falls area of Belfast , and around the Bogside part of Derry from mid-August under Operation Banner were brought in to theoretically protect Catholic areas from further mass loyalist attacks . Ironically , this intervention would lead to Bloody Sunday in 1972 , when fourteen Catholic civilians were killed in the Bogside by British soldiers
Bloody Sunday
Bloody Sunday (1972)
Exercise Armageddon