Reforming the United Nations - Fit for Purpose at 75? - examines the efforts of Secretary-General, António Guterres, to improve the aging organisation during 2017-2019. On development, the global network was repositioned better to assist countries. On peace and security, the Secretariat was reorganised with a focus on conflict prevention. On management, the paradigm centred on decentralisation and accountability. Other priorities addressed sexual exploitation in peacekeeping and gender parity. The detail analysis of the reform process highlights the positions of the United States, Russia, China, the Group of 77 and the European Union. Official records are used. The Guterres reform was respectable by improving efficiency and effectiveness. Reform proposals did not, however, address fundamental problems including Security Council reform.