This essay is an effort to contribute further to an exchange of ideas between the two
disciplines by describing some of the theories, approaches, and "models" political scientists
have used in their research on international relations during recent decades. A brief essay
cannot do justice to the entire range of theoretical approaches that may be found in the current
literature, but perhaps those described here, when combined with citations of some
representative works, will provide diplomatic historians with a useful, if sketchy, map showing
some of the more prominent landmarks in a neighboring discipline.
