The women of the 6888th Central Postal Directory Battalion, the largest unit of Black women to serve overseas during World War II, certainly put their stamp on the war effort—processing about 65,000 pieces of mail per shift. The roughly 850 officers and enlisted personnel were in charge of delivering mail from the home front to the soldiers fighting in the European theater from 1945 to 1946. [time-brightcove not-tgx=”true”] Now, an operation that was totally behind the scenes is front-and-center in a major Hollywood production for the first time.