In the United Kingdom, campaign bars are usually known as clasps and when the ribbon alone is worn they are sometimes indicated by rosettes, although this is not commonly authorised. Examples of ones that were issued are the "under enemy fire" clasp on the 1914 Star and the Battle of Britain clasp on the 1939-45 Star. In the United States Military, Service stars are used to indicate participation in multiple battles or campaigns, although the World War I Victory Medal had an extensive system of bars.
In the United Kingdom, campaign bars are typically referred to as clasps. When only the ribbon is worn, they might be indicated by rosettes, though this practice is not widely authorized. Examples include the "under enemy fire" clasp on the 1914 Star and the Battle of Britain clasp on the 1939-45 Star. In the United States Military, service stars are utilized to signify participation in multiple battles or campaigns, despite the World War I Victory Medal having a detailed system of bars.