DEFENDER is the Army’s largest annual opportunity to exercise moving personnel and equipment into theater across modes for initial and follow-on operations critical to Large Scale Combat Operations. Led by U.S. Army Europe and Africa, the exercise focuses on the strategic deployment of CONUS-based forces, employment of Army Prepositioned Stock and follow-on exercises demonstrating lethality and interoperability with Allies and partners

DEFENDER 25 Outreach tour
DEFENDER 25 Infographic

Videos
Video by Jeff Chao, Marisa Gaona, Gary Haygood, Shelley Tingle
Warfighter’s Edge: ERDC’s Advanced Computational Chemistry Solutions
U.S. Army Corps of Engineers, Engineer Research and Development Center
April 29, 2025 | 3:02
In dense urban environments and on the battlefield, our Warfighters must be prepared to face numerous threats, including toxic industrial chemicals, which can significantly hinder military operations.

To help the Army bolster its force protection measures, computational chemistry experts from the U.S. Army Engineer Research and Development Center (ERDC) are applying groundbreaking methods to help predict chemical threats before they impact mission success.

Watch to learn more about how this team transforms physical principles into algorithmic models that can predict the behavior of chemicals and materials.
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enlightenedTo find information about filing a claim related to exercise DEFENDER activities, visit Claims Information and select your country.