In a notable shift in military policy, women began to actively participate in the U.S. Marine Corps on August 13, 1918, with Opha May Johnson becoming the first woman to enlist. This decision came amid the backdrop of World War I, a conflict that had prompted the United States to seek innovative solutions to bolster troop numbers. The tradition of military service had primarily been male-dominated, but as the war intensified, it became evident that women could offer valuable support in administrative and logistical roles. Johnson's enlistment symbolized a breaking down of gender barriers within the military, as she and others joined to contribute to the war effort.Opha May Johnson, previously working as a civil servant, took the bold step to enlist, embracing the opportunity to serve her country. Her enlistment process marked a significant change in military culture, encouraging other women to follow suit and join the ranks of the U.S. military. By the end of the war, hundreds of women had enlisted in the Marine Corps, taking on essential roles that included clerical work, telegraphy, and various other support functions, all crucial in sustaining military operations.This initiative not only reflected changing attitudes toward women's capabilities but also laid the groundwork for more extensive acceptance of women in military roles. The enlistment of women in the Marines opened doors that would expand over the years, ultimately leading to more integrated opportunities in various military branches. Johnson's courage set a precedent for future generations, showcasing that women could serve and succeed in fields once considered exclusively masculine.