U.S. Marine Corps Maj. Gen. Michael F. Fahey, commanding general, Fourth Marine Division, addresses Marines with Third Battalion, 23rd Marine Regiment, during their annual training at Fort Knox, Kentucky, on June 23, 2021. Units with Marine Forces Reserve conduct annual training to hone job skills and maintain combat proficiency so they are prepared to augment and reinforce the active component. (U.S. Marine Corps photo by Cpl. James Stanfield)