Patrick Salmon is Chief Historian at the Foreign, Commonwealth and Development Office. He was formerly Professor of International History at the University of Newcastle upon Tyne. He is a Fellow of the Royal Historical Society and a Foreign Member of the Norwegian Academy of Science and Letters. His publications include Scandinavia and the Great Powers 1890-1940 (1997), Deadlock and Diversion: Scandinavia in British Strategy during the Twilight War 1939-1940 (2012) and several volumes in the series Documents on British Policy Overseas (DBPO), including German Unification, 1989-1990 (2009), The Challenge of Apartheid: UK-South African Relations, 1985-1986 (2017) and The Unwinding of Apartheid: UK-South African Relations, 1986-1990 (2019).