This panel examines the technological, economic, and cultural infrastructures of U.S. global power during the so-called American Century. It features papers by historians whose work bridges multiple fields: the history of technology, the history of capitalism, and cultural history. Consistent with the conference theme, the panel aims to examine connections between the global and the national, between post-World War II processes of globalization and the enduring ideological salience of nationalism. The panel’s unique contribution will be its emphasis on the significance of materiality: the “stuff” of history, from airplanes to satellites. Recent literature on the history of capitalism has focused on finance, at the expense of considering logistics and infrastructure. Meanwhile, scholarship on the history of technology has tended not to engage robustly with the efflorescence of work on the history of U.S. foreign relations and the global political economy. These papers (and the panelists’ larger book projects) address both historiographical gaps. Infrastructure, as a concept, allows a productive reconceptualization of the historical relationship between materiality and ideology. The panel also, as the AHA’s call for papers suggests, compels us to “rethink the boundaries of the nation itself”—and the infrastructural factors that both constrain and enable movements across national borders.