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 Petty Officer 1st Class Ryan Riley
Submarine Force Birthday Shoutout
Commander, Submarine Group Nine
April 11, 2025 | 1:08
Sailors wish the U.S. submarine force a happy 125th birthday. Commander, Submarine Group (SUBGRU) 9, exercises administrative control authority for assigned submarine commands and units in the Pacific Northwest providing oversight for shipboard training, personnel, supply and material readiness of SSBNs and their crews. SUBGRU-9 is also responsible for nuclear submarines undergoing conversion or overhaul at Puget Sound Naval Shipyard in Bremerton. (U.S. Navy video by Submarine Group 9 Public Affairs)
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Press Information

enlightenedTo find information about filing a claim related to exercise DEFENDER activities, visit Claims Information and select your country.