Obsolete military awards of the United States

Obsolete military awards of the United States are United States military awards which have been officially removed from U.S. military award precedence charts and are listed as "Obsolete Military Decorations" in military award publications and instructions. Typically, the U.S. military will declare a decoration obsolete twenty to thirty years after its last issuance to an active duty member of the military or, in the case of medals designed for members of the reserve forces, a drilling reservist attending annual training.

Source: Wikipedia — Obsolete military awards of the United States (CC BY-SA 4.0)