Formidable Shield Soldiers aim at drones with Avenger air defense systems during Formidable Shield in Hebrides, Scotland, May 14, 2025. Formidable Shield 25 is the largest at-sea live fire exercise in the European theater, bringing together naval, air and ground forces from 10 NATO allies and partners. SHARE: Download: Full Size (1.8 MB) Tags: nato, Exercises, Army, formidable shield Credit: Army Sgt. Yesenia Cadavid VIRIN: 250514-A-JK865-7389M.JPG Photo Gallery