- Lecturer University Wales, Aberystwyth, Wales, 1967-1979, senior lecturer, 1979-1985, reader, since 1985. Scholar in residence United States Naval War College, Newport, Rhode Island, 1977. Senior research fellow Dalhousie University, Halifax, Canada, 1979-1981.
Author: The Military Instrument in Soviet Foreign Policy, 1917-1972, 1974, (with others) Contempory Strategy: Theories and Policies, 1975, Navies and Foreign Policy, 1977, Strategy and Ethnocentrism, 1979, Law Force and Diplomacy at Sea, 1985. Contributor chapters to books in field, also articles to journals. Supporter Amnesty International Member International Institute Strategic Studies, Royal United Services Institute for Defense Studies, British International Studies Association.