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A "V" device is a metal 1⁄4-inch (6.4 mm) capital letter "V" with serifs which, when worn on certain decorations awarded by the United States Armed Forces, distinguishes an award for heroism or valor in combat instead of for meritorious service or achievement.
The decorations with which a "V" may be authorized differ among the military services, as well as the manner in which the "V" is worn and the name by which it is referred to. Until 2017, each service also used different criteria in determining whether a "V" could be authorized.