Single File Marines and sailors conduct a conditioning hike during Mountain Training Exercise 2-25 at Marine Corps Mountain Warfare Training Center, Calif., March 15, 2025. The exercise prepares units to build confidence in their abilities to operate in a cold weather, high-altitude, mountainous environment. SHARE: Download: Full Size (1.67 MB) Tags: Exercises, training, Navy, Marine Corps, Mountain Training Exercise 25 Credit: Marine Corps Sgt. Mary Torres VIRIN: 250315-M-HP122-1254K.JPG Photo Gallery