Owen Martin O'Hagan was a former member of an army which emerged in what year?
Official Irish Republican Army The Official Irish Republican Army or Official IRA (OIRA) was an Irish republican paramilitary group whose goal was to remove Northern Ireland from the United Kingdom and create a "workers' republic" encompassing all of Ireland. It emerged in December 1969, shortly after the beginning of the Troubles, when the Irish Republican Army split into two factions. The other was the Provisional IRA. Each continued to call itself simply "the IRA" and rejected the other's legitimacy. Unlike the "Provisionals", the "Officials" were Marxist and worked to form a united front with other Irish communist groups, named the Irish National Liberation Front (NLF). The Officials were called the NLF by the Provisionals and were sometimes nicknamed the "Red IRA" by others.
Special Reconnaissance Unit The Special Reconnaissance Unit, also known as the 14 Field Security and Intelligence Company (internally "The Det") was a part of the British Army Intelligence Corps involved in plain-clothes operations in Northern Ireland from the 1970s onwards. The unit conducted undercover surveillance operations against suspected members of Irish republican and loyalist paramilitary groups. Its troops were recruited from line battalions and trained in an eight-week course by the Special Air Service (SAS). An initial deployment of 120 men took place in November 1972. Many allegations of collusion with loyalist paramilitaries were made against the unit. In 1987, the unit became part of the newly formed United Kingdom Special Forces directorate. The unit was amalgamated with the Special Reconnaissance Regiment or SRR in 2005.