In the military, challenge coins are proof that you are a member of a unit or served on a specific tour of duty. They mean you are a member of an elite group of people. In early military history, they were used for security. A service member may have been required to show the coin to prove their loyalty.

Do submariners carry a coin?

Coins are usually circular, but also can be pentagons, spades or even dog tags to be worn around the neck. Throughout their service, military members use the coins to prove their allegiance when challenged.

What does it mean to be given a command coin?

Honoring someone with a commander's coin is a way for senior leadership to show their appreciation for a phenomenal job on the spot. It is more than just a thank you or a pat on the back, it is something tangible to remember the moment by.