When did Opha May Johnson enlist in the Marines?

Opha May Johnson enlisted in the Marine Corps on August 13, 1918. This date is significant as she became the first woman to officially join the United States Marine Corps, paving the way for future generations of women in military service. Her enlistment occurred during World War I, a time when the need for personnel in the armed forces was surging, leading to the inclusion of women in various roles within the military. This event marked a pivotal moment in Marine Corps history, as it expanded the concept of service and duty to include women in a traditionally male-dominated environment.