U.S. Marine Corps Sgt. Laith Abdelaziz (left) and Cpl.

U.S. Marine Corps Sgt. Laith Abdelaziz (left) and Cpl. Samuel Jung, primary marksmanship instructors (PMI), Headquarters Company, Weapons and Field Training Battalion, Marine Corps Recruit Depot San Diego, demonstrate how to properly adjust a rifle sling to U.S. Marine recruits with India Company, 3rd Recruit Training Battalion, Recruit Training Regiment, San Diego, during grass week at Edson Range, Marine Corps Base Camp Pendleton, California, March 18, 2019. Annually, more than 17,000 Marine recruits undergo marksmanship training at Edson Range as a part of their requirement for graduation from boot camp. (U.S. Marine Corps photo by Cpl. Dylan Chagnon)