Donoghue was involved for many years in the Northern Ireland peace process. He was one of the Irish government’s negotiators for the groundbreaking Belfast Agreement (1998), which provided a political framework for lasting peace and stability in Northern Ireland. He was General Director of Ireland’s development cooperation program, today known as Irish Aid, and supervised in this capacity a program that grew significantly in budgetary allocation and thematic and geographic coverage. From 2013 to 2017, Ambassador Donoghue was Ireland’s Permanent Representative to the United Nations in New York. At the request of the President of the General Assembly, he served as co-facilitator (with Kenya) in the UN negotiations that led to the adoption of the 2030 Agenda for Sustainable Development in 2015.