A Republic Not an Empire
 A Republic Not An Empire is a 1999 book by American political figure Patrick J. Buchanan. Buchanan critiques foreign policy commitments by the United States. He likens America's overseas involvement to those of past empires—and predicts a similar decline without a change in course. Buchanan writes Present U.S. foreign policy which commits America to go to war for scores of nations in regions where we have never fought before is unsustainable.