In 2005, the United States Mint released the Marine Corps silver dollar commemorative coin, in honor of the 230th birthday of the United States Marine Corps. The coin was sold both as a proof coin and an uncirculated coin, for a total number of 600,000 coins. They became available to order on July 20, 2005, and by September 21, 2005, all coins had been purchased.
This was the first time the United States released a coin to represent a branch of its military.