In April 1994, the Army War College's Strategic Studies Institute held its annual Strategy Conference. This year's theme was "The Revolution in Military Affairs: Defining an Army for the 21st Century." Dr. Michael J. Mazarr argues that the current revolution in military affairs is part of a larger sociopolitical transformation. The new technologies both propelling and resulting from this transformation are having a profound impact on warfare. Dr. Mazarr urges military and civilian strategists, planners, and decisionmakers to think about armed conflict in ways so novel that those used to dealing with "the unchanging truths about war" may feel threatened. To help deal with the ambiguities and complexities presented by the RMA, Dr. Mazarr offers a framework of four principles for defense planning.