U.S. Marine Corps Lance Cpl. Caleb Brown, a mortarman assigned to Weapons Company, 3rd Battalion, 23rd Marine Regiment, 4th Marine Division, fires an M252A1 81mm mortar system during a mission rehearsal exercise at Fort Campbell, Kentucky, May 19, 2022. Weapons Company convened with other units from 3rd Battalion, 23rd Marine Regiment at Fort Campbell for a mission rehearsal exercise to prepare for the upcoming Integrated Training Exercise 4-22 in the summer of 2022. The mortar teams practiced quickly targeting and delivering indirect fires in support of infantry elements. (U.S. Marine Corps photo by Cpl. James Stanfield)