'Charlie One,' the call sign for the most wanted targets of British Intelligence operations in Northern Ireland, documents the true story of an Irish Republican serving in Britain's most secretive counter-terrorism unit. Se���¡n Hartnett grew up in Cork in the 1970s where he observed the worst of the northern Troubles with fascination. Despite his family's strong republican ties and his own attempt to join the IRA, Hartnett shocked family and friends when he changed allegiance and joined the British Armed Forces. In 2001, Hartnett returned to his native Ireland but this time as a member of the British Army's covert counter-terrorist unit, the Joint Communications Unit Northern Ireland (JCU-NI) or simply 'The Det.' For the next three years, Hartnett was directly involved in some of the highest profile events of that period: the arrest of John Hannan for the bombing of the BBC in London, the tragic murder of David Caldwell, the prevention of the murder of Johnny 'Mad Dog' Adair, and some of the biggest blunders by British Intelligence in the history of the Troubles. Filled with a roller coasterof emotions and explosive revelations about British Intelligence covert capabilities and operations, Charlie One provides a truly unique, detailed, and unbiased account of the secret war fought on the streets of Northern Ireland. [Subject: British Military History, Espionage, Memoir, Irish Studies, Politics]