Capt. Shawn Graves, 322nd Training Squadron flight commander, navigates an obstacle during the 37th Training Wing bivouac exercise Feb. 13, 2019, Joint Base San Antonio-Lackland Medina Annex, Texas. The first of its kind 36-hour exercise focused on instilling the air expeditionary mindset, building individual and team confidence, and identifying training needs in an effort to promote Comprehensive Airman Fitness, improve readiness, and foster stronger relationships across the wing.