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 2nd Class Alyssa Sperle
Rear Adm. Michael Mattis Interview
U.S. Naval Forces Europe-Africa/U.S. Sixth Fleet
June 30, 2025 | 2:54
PORTLAND PORT, England (June 30, 2025) Rear Adm. Michael Mattis, director, strategic effects, U.S. Naval Forces Europe/Africa, commander, Task Force (CTF) 66 speaks during exercise Sea Breeze 2025-2's opening ceremony June 30, 2025.Sea Breeze is an annual maritime exercise aimed at building collective capability and agility to restore security and stability in the dynamic Black Sea. Sea Breeze 2025-2 is focused on Mine Countermeasure, EOD, dive operations, and unmanned underwater vehicles. (U.S. Navy Video by Mass Communication Specialist 2nd Class Alyssa Sperle)
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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.