Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A great book on world politics... a must read!

War at the top of the world is a breathtaking first-hand account and political analysis of Afghanistan, Pakistan, India, and China. He exposes Russia's expansionist agenda and predicts future confrontations in that part of the world. He also covers Kashmir's struggle for freedom, the plight of Tibetans, and the rival interests of China and India along their border. Eric Margolis is a well-informed journalist with a wealth of knowledge when it comes to world politics and history. He tapps into his experience with the mujahideen freedom fighters on the battle field of Afghanistan to explain how the Soviet invasion of that country has continued to affect many people to this day. His book is also full of personal experiences he had alongside the mujahideen, and other perilous journeys that brought him close to death. The reader is left amazed that he survived these experiences. I can't wait for his next book!