For almost 150 years, the Yūshūkan military museum on the grounds of Yasukuni Shrine has been one of the most prominent tourist sites in Tokyo. Opened in 1882 as Japan's first Western-style museum, the Yūshūkan is often seen as the emblem of the so-called “Yasukuni view of history, ” which downplays Japanese militarism and imperialism and is at the heart of tensions with other nations. This study is the first dedicated treatment of the long history of the Yūshūkan from its conceptualization in the 1870s to its place in Japan and the world in the 2020s. It argues that the origins of the Yūshūkan should be seen in the context of the global spread of the military museum as an institution in the late nineteenth century. Over the past 140 years, the Yūshūkan has gone from appealing to an emerging global standard to claiming a Japanese uniqueness as justification for its existence and has always been closely intertwined with global discourses on war, commemoration, and Japan's place in the world.