Horse Course Marine Corps Rachel Young-Porter reaches to pet a horse during an animal packing course at the Marine Corps Mountain Warfare Training Center in Bridgeport, Calif., Oct. 9, 2020. The course teaches students to use mules to travel through difficult terrain with mission-essential gear. SHARE: Download: Full Size (1.82 MB) Tags: Marine Corps Credit: Marine Corps Lance Cpl. Colton Brownlee VIRIN: 201009-M-ET234-1103Y.JPG Photo Gallery