Sgt. Maj. Patrick L. Kimble (left), sergeant major of Marine Forces Reserve and Marine Forces North, and Lt. Gen. Rex C. McMillian (right), commander of MARFORRES and MARFORNORTH, talk with World War II veterans who fought in the Battle of Iwo Jima at the National Western Stock Show in Denver, Jan. 17, 2017. Leaders of MARFORRES were in attendance to commemorate veterans and the 100th anniversary of the Marine Corps Reserve. From World War I through the wars in Iraq and Afghanistan, the Marine Corps Reserve has played an essential role in the Marine Corps Total Force by augmenting and reinforcing the active component across the full range of military operations. (U.S. Marine Corps photo by Lance Cpl. Dallas Johnson/Released)