The Battle of the Bogside was a very large communal riot that took place from 12 to 14 August 1969 in Derry, Northern Ireland. The fighting was between residents of the Bogside area (organised under the Derry Citizens' Defence Association), and the Royal Ulster Constabulary (RUC) along with local unionists.
The rioting erupted at the end of an Apprentice Boys parade which was passing along the city walls, past the Catholic Bogside. Fierce rioting broke out between local unionists and the police on one side and Catholics on the other. Rioting between police and Bogside residents continued for three days. The police were unable to enter the area and eventually the British Army was deployed to restore order. The riot, which sparked widespread violence elsewhere in Northern Ireland, is commonly seen as one of the first major confrontations in the conflict known as the Troubles.