Because December 22, 1938, the date now held as Mother's Day, was the day of the First Women's Congress that was held in Indonesian territory (then the Netherlands East Indies) in 1938, it was later designated as the official Corps Day, honoring the military mothers and women who through their works and actions not just ensured the independence and sovereignty of the Republic against foreign aggression, but also contributed to her defense, stability, progress and prosperity in all works of endeavor regardless of their religion, ethnic origin and way of life, including as servicewomen in the ranks of the Army.