Esper Remarks Defense Secretary Dr. Mark T. Esper speaks at the Pentagon, Sept. 20, 2019. Esper is traveling next week to NATO headquarters in Brussels, where he plans to press other NATO allies to take collective and individual diplomatic and economic measures in response to Turkey's actions. SHARE: Download: Full Size (1.1 MB) Tags: Defense Secretary, Esper Credit: Lisa Ferdinando, DOD VIRIN: 190920-D-BN624-0146.JPG Photo Gallery