DISPUTANTA - Have you ever heard of challenge coins? Maybe you or someone you know has earned one in recognition of extraordinary service. During a follow-up story interview with Three Brothers' ...

Army challenge coins are popular in the United States, and while you are now interested in collecting some, you may not yet know how it started. Curious? Just keep reading! Challenge coins were born ...

Defense Secretary Robert Gates hands a challenge coin bearing his name to a service member at a forward operating base in Kandahar province, Afghanistan, in 2011. Photo by Jason Reed/Getty Images ...

WASHINGTON — Since Bill Clinton occupied the White House, commemorative medallions known as challenge coins have been stately symbols of the presidency coveted by the military, law-enforcement ...

Coin collecting can feel like stepping into a glittering treasure hunt where history meets opportunity. Beyond the charm of owning tiny artifacts from distant eras, many collectors are drawn by the ...