Taken from the preface: "....The present book...reports the ways in which the problems of nationalism seem to me to be developing now and the ways in which we may have to deal with them in the future. Although I have omitted many technicalities, I have tried to keep in view the heart of each of the major problems, which together make up the great questions of nationalism and internationalism and of war and peace, with which we must deal not only as scholars and students but also as citizens of our countries and of mankind. These questions will require decisions from all of us--decisions of policy, as well as decisions of basic attitudes, of the distribution of risks, and of the balance between present commitments and future inquiries. The case for such decisions can be introduced in common, nontechnical language, and this is the task of this book. If it provokes some readers to further thought and study, and perhaps to some responsible civic action, it will have served its task."