Evolving Bilateralisms: US Security Partnerships in Northeast Asia - The Evolution of the South Korea–United States Alliance By Uk Heo and Terence Roehrig. Cambridge: Cambridge University Press, 2018. ix, 282 pp. ISBN: 9781107104679 (cloth). - Japan in the American Century By Kenneth B. Pyle. Cambridge, Mass.: Belknap Press of Harvard University Press, 2018. 457 pp. ISBN: 9780674983649 (cloth). - Japan, South Korea, and the United States Nuclear Umbrella: Deterrence after the Cold War By Terence Roehrig. New York: Columbia University Press, 2017. x, 259 pp. ISBN: 9780231157988 (cloth). - Japan Rearmed: The Politics of Military Power By Sheila A. Smith. Cambridge, Mass.: Harvard University Press, 2019. xi, 333 pp. ISBN: 9780674987647 (cloth).