SSgt. Mathew Lapat, left, and Sgt. William Hatley, instructors attached to Marine Corps Mountain Warfare Training Center, give a class on rappelling across a ravine to Marines from H&S Company, 1st Battalion, 24th Marine Regiment, 4th Marine Division, Marine Forces Reserve, at Marine Corps Mountain Warfare Training Center, Bridgeport, Calif., July 22, 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)