Zachary Selden is an American educator, author, and diplomat who served as the Deputy Secretary General for Policy at the NATO Parliamentary Assembly from 2008 to 2011. Selden is now an associate professor at the University of Florida. Selden has also worked as an analyst in the Congressional Budget Office and as the Director of Defense and Security Committee of the NATO Parliamentary Assembly. Selden is a prolific author on American national security, European affairs, and NATO. Selden has been a leading commentator on NATO expansion since the 2022 Russian invasion of Ukraine. References University of Florida faculty