U.S. Marines with Weapons Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, execute mortar training drills at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 27, 2022, for Mountain Training Exercise 4-22. MTX 4-22 prepares Marines for the challenges of operating in a harsh, mountainous environment many of their adversaries are acclimated to. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)

U.S. Marines with Weapons Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, look down an M67 mortar sight while conducting mortar drills at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 27, 2022, for Mountain Training Exercise 4-22. MTX 4-22 allowed reserve Marines to participate in mountain warfare operations for realistic combat training to facilitate increased readiness for the Marine Forces Reserve. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)

Sgt. Elijah Kozak, a section leader assigned to Weapons Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, uses a plotting board while conducting mortar drills at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 27, 2022, for Mountain Training Exercise 4-22. MTX 4-22 prepares Marines for the challenges of operating in a harsh, mountainous environment many of their adversaries are acclimated to. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)

Cpl. Connor Brannagan, fire direction chief assigned to Weapons Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, uses an M32A1 Lightweight Handheld Mortar Ballistic Computer while conducting mortar drills at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 27, 2022, for Mountain Training Exercise 4-22. MTX 4-22 allowed reserve Marines to participate in mountain warfare operations for realistic combat training to facilitate increased readiness for the Marine Forces Reserve. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)

U.S. Marines with Weapons Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, adjust the height of an M252A1 81mm mortar while conducting mortar training drills at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 27, 2022, for Mountain Training Exercise 4-22. MTX 4-22 offers a unique training experience for reserve Marines to prepare and develop an understanding of traversing a mountainous environment as they maintain their readiness. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)

U.S. Marines with Weapons Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, adjust an M67 mortar sight while conducting mortar training drills at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 27, 2022, for Mountain Training Exercise 4-22. MTX 4-22 allowed reserve Marines to participate in mountain warfare operations for realistic combat training to facilitate increased readiness for the Marine Forces Reserve. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)

Cpl. Connor Brannagan, left, fire direction chief, and Sgt. Elijah Kozak, a section leader with Weapons Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, use a plotting board while conducting mortar training drills at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 27, 2022, for Mountain Training Exercise 4-22. MTX 4-22 prepares Marines for the challenges of operating in a harsh, mountainous environment many of their adversaries are acclimated to. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)

U.S. Marines with Weapons Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, conduct mortar drills with an M252A1 81mm mortar at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 27, 2022, for Mountain Training Exercise 4-22. MTX 4-22 allowed reserve Marines to participate in mountain warfare operations for realistic combat training to facilitate increased readiness for the Marine Forces Reserve. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)

U.S. Marines with Weapons Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, practice mortar firing drills at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 27, 2022, for Mountain Training Exercise 4-22. MTX 4-22 allowed reserve Marines to participate in mountain warfare operations for realistic combat training to facilitate increased readiness for the Marine Forces Reserve. (U.S. Marine Corps photo by Cpl. Jonathan L. Gonzalez)