Nancy Collins writes about U.S. defense, national security, and military technology. Her essays and commentaries have appeared in a range of media outlets, including Forbes, The New York Times, TIME, U.S. News and World Report, and The Wall Street Journal. She is the author of Grey Wars (Yale University Press, 2021).

Collins is the chair of Defense and Security Studies at Columbia University. Since joining the University in 2004, she has taught contemporary history and security studies as well as directed a research institute in international affairs.

Over the past two decades, Collins has received fellowships and grants from, among others, the University of Chicago, Harvard University, the Rockefeller Foundation, the Wilson Center, and Yale University, and is a recipient of the US Congressional Dirksen Award and the NCAFP 21st Century Leadership Award.

Since 2010, Collins has worked on occasional special projects for the U.S. Department of Defense. She is a member of the Council on Foreign Relations and the U.S. Commission on Military History.

Collins received a B.A. in government from Georgetown University and a Ph.D. in history from the University of London, where she was named the Thornley Fellow, an international prize.