From the late 1960s, Kyle began an academic career, while remaining active as a journalist for some years. He was a Fellow of the John F Kennedy Institute of Politics at Harvard (1967–68) and joined Chatham House in 1972, where he remained for 30 years. In the late 1980s, St Antony's College, Oxford invited him to become an associate member. His history, "Suez: Britain's End of Empire in the Middle East" (Weidenfeld &amp; Nicolson) first appeared in 1991, and is regarded as definitive in almost all the cited articles. His other books include "The Politics of the Independence of Kenya" in 1999 and his posthumous autobiography "Keith Kyle: Reporting the World" appeared in June 2009, published by I.B.Tauris.