On Tuesday, the 6888th Central Postal Directory Battalion — the only mostly Black, all-women unit to serve overseas during World War II — was awarded the Congressional Gold Medal, Congress’ highest civilian honor, at the U.S. Capitol, according to ABC News.

The only Black, all-female unit to serve in Europe during World War II, known as the "Six Triple Eight," has been presented with the Congressional Gold Medal.

The women were sent to Europe to clear a backlog of 17 million pieces of mail waiting to be sent to U.S. troops.