Lieutenant Colonel Brian Low, 90th Civil Engineer Squadron commander, kicks off the squadron's virtual ruck march via an online video conference May 7, 2020 on F. E. Warren Air Force Base, Wyo. Low was among more than 80 participants across the squadron who loaded up with 15 lbs. of weight and marched on base while practicing safe social distancing guidelines. The march was organized to honor first responders and medical professionals working through the COVID-19 pandemic. (U. S. Air Force photo by Glenn S. Robertson)