"When two supremely powerful political rivals lock horns in a clash of personality and ideology, they can change the course of human history. Great Rivals in History brings to life the drama of history's most vicious political and military feuds, ranging through centuries and across the globe. Rivalries have sparked some of the most dramatic episodes in the history of the world, and twenty-five of these are recreated here. Impeccably researched and utterly compelling, this book profiles a remarkable cast of implacable foes, and reveals how their tug-of-war over ultimate power and glory shaped the wider history of the world. "--Provided by publisher.