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 Sgt. Atticus Martinez
3rd Bn., 5th Marines overcomes the cold in Bridgeport during MTX 1-25
1st Marine Division
March 6, 2025 | 3:03
U.S. Marines with 3rd Battalion, 5th Marine Regiment, 1st Marine Division, participate in Mountain Training Exercise 1-25 at Marine Corps Mountain Warfare Training Center Bridgeport, California, Jan. 10–Feb. 7, 2025. MTX is a month-long exercise designed to prepare units to survive and operate effectively in austere, mountainous terrain, further developing character, mental, spiritual and physical endurance and resiliency. (U.S. Marine Corps video by Sgt. Atticus Martinez)
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What is happening where?

Redirecting...
  • Swift Response

    FinlandItalyLatviaLithuaniaNorwaySwedenSlovenia

  • Immediate Response

    AlbaniaBulgariaCroatiaGreeceKosovoMontenegroNorth MacedoniaSlovakia

  • Saber Guardian

    CzechiaGermanyHungaryRomaniaSlovakia

Press Information

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