Kenneth Waltz
Kenneth Waltz PhD '57 is one of the most influential scholars in modern international relations theory (ref) and a major founder of the school of thought called neorealism (or structural realism), which argues that the structure of the international system is the primary determinant of state behavior. He is best-known for his books Man, the State, and War and Theory of International Politics, both of which are classics in the field. An excerpt from the introduction to the latter was the guest essay in the 2004 Journal of Politics & Society. In recent years he has also made waves with his somewhat controversial views on nuclear proliferation.
