Fuji Viper A Marine fires an M240B machine gun during mixed weapons range training at Combined Arms Training Center Fuji, Japan, June 19, 2020. The Marines were participating in Fuji Viper, an annual exercise focused on sustaining individual and small unit proficiency and decision making. SHARE: Download: Full Size (4.06 MB) Tags: FUJI VIPER, Marine Corps, Indo-Pacific Credit: Marine Corps Cpl. Savannah Mesimer VIRIN: 200619-M-GB409-366.JPG Photo Gallery