ABSTRACT
A remarkable development of the last ISO years, the study of which has been much neglected and would provide an important opportunity for peace research, has been the growth of an increasing area of stable peace between independent nations. In Africa, remarkably stable international boundaries have held since the end of the colonial empires, despite a great deal of internal war. There has been international war between Ethiopia and Somalia, essentially over a boundary problem. In Europe, since 1946, there has been little that could be called international war. The Russian invasions of Hungary and Czechoslovakia are almost the only example. The relation of economic capacity and institutions to peace, both international and internal, is extremely complex and deserves much more serious study. The role of organized nonviolence in the establishment of stable peace is an extremely interesting question, the answers to which may be very important in the future.
