Lt. Gen. Rex C. McMillian, commander of Marine Forces Reserve and Marine Forces North, speaks during a commemorative ceremony at the National World War II Museum, Dec. 7, 2016, for the 75th anniversary of the attack on Pearl Harbor. The event honored the service members who were present during the fateful attack on Dec. 7, 1941. During World War II, by September of 1945, Reserve Marines made up 70 percent of total wartime Marine Corps personnel. For information on the history and heritage of the Marine Corps Reserve as well as current Marine stories and upcoming Centennial events, please visit www.marines.mil/usmcr100. (U.S. Marine Corps photo by Sgt. Ian Leones) - Lt. Gen. Rex C. McMillian, commander of Marine Forces Reserve and Marine Forces North, speaks during a commemorative ceremony at the National World War II Museum, Dec. 7, 2016, for the 75th anniversary of the attack on Pearl Harbor. The event honored the service members who were present during the fateful attack on Dec. 7, 1941. During World War II, by September of 1945, Reserve Marines made up 70 percent of total wartime Marine Corps personnel. For information on the history and heritage of the Marine Corps Reserve as well as current Marine stories and upcoming Centennial events, please visit www.marines.mil/usmcr100. (U.S. Marine Corps photo by Sgt. Ian Leones)