In 1938, with tensions in Europe and the Pacific on the rise, Congress corrected organizational and fiscal shortcomings with the Naval Reserve Act of 1938. The Act abolished the Act of 1925 and established the Organized Marine Corps Reserve, forerunner of today’s Select Marine Corps Reserve, and a Volunteer Marine Corps Reserve, forerunner of today’s Inactive Ready Reserve. It also ensured that Reserve Marines would be adequately compensated for their service and that they would receive realistic training. The improved training was an important factor in the success of the Marine Corps in World War II.
As the situations escalated in Europe and the Pacific, the Marine Corps Reserve rapidly expanded in 1940 over a year prior to the Japanese attack on Pearl Harbor. Massive manpower was required to execute the newly developed amphibious warfare doctrine. The Pacific island-hopping campaign involved a surge of Reserve Marines into the Regular forces. The Marine Corps expanded from approximately 15,000 Regular Duty personnel to more than 485,000 Marines by 1945, with Reserve Marines constituting the bulk of personnel strength. Of the 589,852 Marines to serve during World War II, approximately 70 percent were Reserves. One general officer described the Reserve as “… a shot in the arm when war came.”
During the Pacific campaigns, Reserve Marines endured extreme tropical conditions, scarce supplies, and the fanatical tactics of their Japanese adversaries. As the Pacific Campaign progressed, the Marines seized crucial strategic targets, such as the Solomon, Marshall, Marianna, Iwo Jima, and Okinawa Islands. Reserve Marines performed valiantly throughout the war, as 44 of the 82 Marine Medal of Honor recipients were Reservists. Twenty Reserve Marines received the Medal of Honor for actions in the Battle of Iwo Jima alone.
Many Reserve aviators also distinguished themselves, such as Robert Galer, Joe Foss, and Robert Hanson. Perhaps the most famous Reserve Marine aviator of the war was Gregory “Pappy” Boyington, the Marine Corps’ Ace of Aces. The Medal of Honor recipient and leader of the Black Sheep squadron, VMF-214, shot down 26 enemy planes over the course of the war.
Nearly all combat correspondents covering the war were Reserve Marines. These former newspapermen and photographers told the Marine Corps’ story to the American public and were a vital link between the populace and their Marines serving overseas. Once they returned to their civilian careers, these journalists would continue to provide helpful and positive media coverage of the Marine Corps during the post-war years.
Wartime manpower needs also opened opportunities for women to serve, all of whom did so as part of the Marine Corps Reserve. More than 19,000 women joined the U.S. Marine Corps Women’s Reserve to “Free a Marine to Fight.” These pioneering women filled more than 200 occupations, such as truck drivers, electricians, mechanics, cryptographers, painters, parachute riggers, paymasters, and aerial photographers. Col. Ruth Cheney Streeter served as the first Director of the Marine Corps Women’s Reserve. She orchestrated the wartime expansion of the Women’s Reserve program and pushed for the continuance of the Women’s Reserve after the war.
Further crucial manpower support came from the 19,168 African American men who joined the Marines during the war. Trained at Montford Point, near Camp Lejeune, North Carolina, they served as enlisted men since 1942 and as officers since 1945. Of these Marines, 75 percent served overseas. Although assigned to service support units, approximately 8,000 African-American Marines performed their duties under fire at places like Saipan, Tinian, and Iwo Jima. Some of the Montford Point Marines would continue to serve honorably in the Reserve Force through the Korean War and beyond.
Just as in the First World War, Reserve Marines seamlessly integrated into the Active Component. As one official history noted, during World War II “…the reservist was so indistinguishable from the Regular that to attempt a distinction is irrelevant.” Another general officer elaborated on the successful integration of the Total Force during that period:
“By the time we got into battle in World War II, the Regular was a rare creature and the Reserve became the Marine that you saw everywhere you went. Never has a fighting organization been more successful than the Marine Corps in World War II; therefore, the only conclusion you can reach is that the Reservist in World War II was of the highest quality attainable.”
Still another officer referred to the relationship between the Reserve and Active Components as “our greatest blessing, our greatest strength…when fighting side by side, the labels Reserve and Regular melt away.” Through their commitment to the Corps and courage under fire, Reserve Marines of the World War II era made an invaluable contribution to what was arguably the nation’s greatest military victory.