Book excerpt: This book provides an answer to the mystery of why no peace treaty has yet been signed between Japan and Russia after more than sixty years since the end of World War Two. The author, a leading authority on Japanese-Russian diplomatic history, was trained at the Russian Institute of Columbia University. This volume contributes to our understanding of not only the intricacies of bilateral relations between Moscow and Tokyo, but, more generally, of Russia's and Japan's modes of foreign policy formation. The author also discusses the U.S. factor, which helped make Russia and Japan distant neighbors, and the threat from China, which might help these countries come closer in the near future. It would be hardly possible to discuss the future prospects of Northeast Asia without having first read this book.