Security Television Network
War Department Leaders Attend Energy Expo
Michael Duffey, undersecretary of war for acquisition and sustainment, and Dale Marks, assistant secretary of war for energy, installations and environment, speak at the Pentagon to kick off Energy Sentry - Pentagon: DoW's Energy Innovation Expo, Sept. 22, 2026
About this video
Michael Duffey, undersecretary of war for acquisition and sustainment, and Dale Marks, assistant secretary of war for energy, installations and environment, speak at the Pentagon to kick off Energy Sentry - Pentagon: DoW's Energy Innovation Expo, Sept. 22, 2026
Video
Attribution: Source: DVIDS Hub — U.S. Department of Defense public-affairs media
The interactive STN application appears here when JavaScript is available. Published facts and source links above remain readable without JavaScript.