A service star is a miniature bronze or silver five-pointed star ³⁄₁₆ inch in diameter that is authorized to be worn by members of the seven uniformed services of the United States on medals and ribbons to denote an additional award or service period. The service star (³⁄₁₆ inch star) may also be referred to as a campaign star or battle star depending on which award is authorized the ³⁄₁₆ inch star and the manner in which the device is used for the award.

Service, campaign, and battle stars are worn with one point of the star pointing up on the suspension ribbon of a medal and or service ribbon. A silver ³⁄₁₆ inch star is worn instead of five bronze stars. A bronze or silver ³⁄₁₆ inch star is sometimes mistaken for a Bronze Star (Bronze Star Medal) or Silver Star (Silver Star Medal). The silver ³⁄₁₆ inch star is also similar to the silver ⁵⁄₁₆ inch star" which may be authorized to be worn on specific individual decorations to denote additional decorations.

Service stars

Expeditionary medals