Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointing as a Military History of Tanks

I bought this book to read about tanks and in the very first chapter found that the author was more interested in addressing political, philosophical, social, ethical and other issues than tanks. This chapter devotes 19 pages to the ramifications of a young man standing in front of a tank at Tiananman Square. The author makes massive use of adjectives and has numerous quotations from others which in many cases add very little.