In this paper, I accompany William James and Mary Whiton Calkins in the steps each takes toward his or her respective proposal of a moral equivalent of war. I demonstrate the influence of James upon Calkins, suggesting that the two share overlapping formulations of the problem and offer closely related—but significantly different—solutions. I suggest that Calkins's pacifistic proposal is an extension of that of her teacher—a feminist interpretation of his psychological and moral thought as brought to bear on the problem (...) of war. Calkins's brand of pacifism widens the scope of James's “moral equivalent of war” in a way that is consonant with feminist ideals of inclusiveness and social justice. I conclude by commenting on how James's and Calkins's pacifism can continue to be extended fruitfully in contemporary feminist pacifist theory and practice. (shrink)