This big, important book is a genuine East-West joint venture with its clutch of authors including two who subsequently joined President Bush's National Security Council staff and four who came to form part of the Soviet arms control negotiating teams. The book concentrates on military aspects of arms control, ranging from doctrine to verification, but it sets them in their broader context: conventional arms control cannot be separated from nuclear issues. More important, its ultimate subject is intensely political, nothing less than the future of the two Germanies and the shape of Europe.