Michael Allen, an associate professor in the School of Public Service, and co-authors recently published research on the number of U.S. service members in other countries from 1950-2020. The Economist showcased the data while discussing U.S. power since the end of the Cold War.
Data from Allen’s project can be used for understanding the changes in U.S. overseas deployments and the positive and negative effects of those deployments.
Economist article: https://www.economist.com/briefing/2021/09/11/how-america-wasted-its-unipolar-moment
Research article: https://journals.sagepub.com/doi/abs/10.1177/07388942211030885