Surf Zone Marines swim into the surf zone at Marine Corps Base Camp Pendleton, Calif., Jan. 21, 2020, during Iron Fist, an annual training exercise between U.S. and Japanese troops. SHARE: Download: Full Size (0.57 MB) Tags: training, Marine Corps Credit: Marine Corps Lance Cpl. Britany Rowlett VIRIN: 200122-M-ZN327-0555C.JPG Photo Gallery