ulsterisationEtymologyFrom Ulster + -isation.nounThe devolution of security and policing to Northern Irish forces such as the Royal Ulster Constabulary.“The first indication of the Ulsterisation policy came in April 1974 when the new Secretary of State for Northern Ireland, Merlyn Rees, announced that he intended to restore 'the full responsibility of law and order to the police'.”The devolution of security and policing to local forces in any area with an active insurgency.The rise of nationalism in a region, and consequent rejection of traditional left/right politics in favour of nationalist/unionist politics.“Suarez told the Carter administration that 'Ulsterisation' of the Basque problem would present a serious threat to Spain's precarious democratic regime.”