Peace-building is now a major aspect of the work of international institutions. While once the international community aimed simply to maintain a ceasefire and restore some form of stability in conflict zones, since the early 1990s there has been increasing attention given to creating peaceful and democratic societies through international intervention. A common problem in international peace-building projects over the past decade has been the position of women, particularly their limited involvement in the institutional design of peace-building strategies and the possibility that peace-building may actually reduce local women’s agency in society. This article discusses the modern enterprise of peace-building and identifies international legal principles that can serve as a framework for peace-building projects in which women’s lives are taken seriously.