Neon Defender Marines conduct close quarters battle training during Exercise Neon Defender in Ras al Qarain, Bahrain, April 4, 2021. Neon Defender is a bilateral maritime exercise between the U.S. and Bahrain designed to enhance interoperability and readiness. SHARE: Download: Full Size (5.1 MB) Tags: marine corps, partnerships, neon defender Credit: Marine Corps Staff Sgt. Victor Mancilla VIRIN: 210404-M-AU949-0021.JPG Photo Gallery