Greg Pollock

Greg Pollock (LinkedIn) is a non-resident Senior Research Fellow at the Center for Climate and Security and an Adjunct Professor at Georgetown University’s School of Foreign Service, where he teaches graduate students about national security risks. He taught previously at the National War College and served in a series of leadership positions in the Office of the U.S. Secretary of Defense from 2010-2025, including twice serving as an acting Deputy Assistant Secretary of Defense.