Native Americans and World War II refers to the contributions of Native Americans to the United States military and home front from 1939 to 1945. Scholars estimate that approximately 44,000 Native American men and women enlisted in the military during World War II. According to the Navy Department publication, Indians in the War, in 1945 Native Americans were serving in all branches of the military. There were 21,767 in the Army, 1,910 in the Navy, 723 in the Marines, 121 in the Coast Guard. In addition Native American women also served in both the Women's Army Corp (WAC) and Women Accepted for Volunteer Emergency Services (WAVES). These figures included over one-third of all able-bodied Native American men aged 18 to 50, and even included as high as seventy percent of the population of some tribes. The first Native American to be killed in WWII was Henry E. Nolatubby, a Chickasaw from Oklahoma. He was part of the Marine Detachment serving on the USS Arizona and went down with the ship during the Japanese attack on Pearl Harbor on December 7, 1941. Unlike African Americans or Asian Americans, Native Americans did not serve in segregated units, and served alongside white Americans.