Anabaptists have often felt suspicious of American evangelicalism, and in turn evangelicals have found various reasons to dismiss the Anabaptist witness. Yet at various points in the past as well as the present, evangelicals and Anabaptists have found ample reason for conversation and much to appreciate about each other. The Activist Impulse represents the first book-length examination of the complex relationship between evangelicalism and Anabaptism in the past thirty years. It brings established experts and new voices together in an effort to explore the historical and theological intersection of these two rich traditions. Each of the essays provides fresh insight on at least one characteristic that both evangelicals and Anabaptists share–an impulse to engage society through the pursuit of active Christian witness.