In the late 1960s and early 1970s, a civil war started in Northern Ireland. This book tells that story through Belfast and Derry, using original archival research to trace how multiple and overlapping conflicts unfolded on their streets. The Troubles grew out of a political process that mobilised opponents and defenders of the Stormont regime, and which also dragged London and Dublin into the crisis. Drawing upon government papers, police reports, army files, intelligence summaries, evidence to inquiries and parish chronicles, this book sheds fresh light on key events such as the 5 October 1968 march, the Battle of the Bogside, the Belfast riots of August 1969, the ‘Battle of St Matthew’s’ (June 1970) and the Falls Road curfew (July 1970). Prince and Warner offer us two richly-detailed, engaging narratives that intertwine to present a new history of the start of the Troubles in Belfast and Derry—one that also establishes a foundation for comparison with similar developments elsewhere in the world.