The Joint Service Commendation Medal is awarded for heroism or meritorious service while assigned to a joint command or joint activity. It is generally considered to be a somewhat high-ranking decoration. As such, it is worn above the service Commendation Medals on a military uniform. For actions where such performance was in direct contact with an enemy force, the Valor device ("V" device) is authorized as an attachment to the decoration. For additional awards of the Joint Service Commendation Medal, the Army issues oak leaf clusters while the Navy and Coast Guard furnish gold and silver award stars. The Operational Distinguishing Device is authorized for the Coast Guard Commendation Medal upon approval of the awarding authority.