U.S. political and military diffi culties in Iraq have prompted comparisons to the American war in Vietnam. How, in fact, do the two wars compare? What are the differences and similarities, and what insights can be gained from examining them? Does the Vietnam War have instructive lessons for those dealing with today's challenges in Iraq, or is that war simply irrelevant? In the pages that follow, two highly qualifi ed analysts address these questions. Dr. Jeffrey Record, formerly a civilian pacifi cation advisor in Vietnam and author of books on both the Vietnam and Iraq wars, and W. Andrew Terrill, author and co-author of several SSI studies on Iraq, conclude that the military dimensions of the two confl icts bear little comparison. Among other things, the sheer scale of the Vietnam War in terms of forces committed and losses incurred dwarfs that of the Iraq War.