As part of the roundtable “World Peace (And How We Can Achieve It),” this essay argues that an ideal state of peace might not be attainable, but a positive form of peace could be achieved on a global scale if states and peoples made a serious investment—comparable to their investment in military expenditure—in promoting the kind of mutual cultural understanding that reduces tensions and divisions and fosters cooperation. Peacemaking usually focuses on diplomatic and military détente; the argument in this essay is that these endeavors, though obviously important, are not by themselves enough for the best attainable kind of peace, for which the further and even more important aim of cultural entente is essential. This implies that peacemaking activities need to apply vastly more effort to intercultural and interpersonal exchange and education.