Southern Vanguard Soldiers cross-country ski at the Chilean Army Mountain School in Portillo, Chile, Aug. 21, 2021, during Southern Vanguard, an exercise between U.S. and Chilean troops. SHARE IMAGE: Download Image: Full Size (0.52 MB) Tags: Army, Chile, Training, Partnerships, Southern Vanguard Photo By: Army Sgt. Gregory Muenchow VIRIN: 210821-A-JZ525-0189C.JPG Photo Gallery