A rather uneven collection of essays on Japanese-U.S. relations of which the most important and balanced is Robert Scalapino's. He presents both an optimistic and a pessimistic scenario for those relations, with much hinging on domestic politics in both countries. On the Japanese defense issue, Scalapino details the debate within Japan and the U.S. between those who think Japan's defense commitments are adequate and those who do not. And he concludes on a sobering note. The U.S.-Japan relationship is going to have to accommodate a higher degree of tension than ever in the past and, to meet this challenge, we need a much greater pool of expertise than we now have, both in and out of government, to expand the consultative process at many levels.