__Masuda Hajimu__ (family name Masuda) is a historian at the National University of Singapore. He is the author of *Hitobito no naka no Reisen sekai : sōzō ga genjitsu to naru toki (The Cold War World among Ordinary People: When Imagination Became Reality)* (Iwanami shoten, 2021); *Cold War Crucible: The Korean Conflict and the Postwar World* (Harvard University Press, 2015); “The Early Cold War: Studies of Cold War America in the 21st Century” in *A Companion to U.S. Foreign Relations* (Wiley Blackwell, 2020); “The Social Experience of War and Occupation” in The Cambridge History of Japan (Cambridge University Press, forthcoming in 2023), among many others. His areas of concentration are the modern history of East Asia, the history of American foreign relations, and the social and global history of the Cold War, with particular attention toward ordinary people and their violence, as well as the recurrent rise of grassroots social conservatism in the globalized world of the twentieth century. He was a residential fellow at the Woodrow Wilson International Center for Scholars (2017-18); Visiting Fellow at the University of Cambridge (2020); and Visiting Scholar at Waseda University (2020). In 2021, he received the 75th Mainichi Shuppan Bunka Sho (The Mainichi Publishing Culture Prize) and the 21st Osaragi Jiro Rondan Prize.