Bronze Oak Leaf Cluster Criteria: Exclusively administered by the U.S. Army and Air Force (with the exception of Department of Defense awards), the Oak Leaf Cluster device is used to denote subsequent awards of a particular military decoration. Multiple Oak Leaf Clusters indicate the number of decorations received. Bronze Oak Leaf Clusters are given for the second and subsequent awards. A single Silver Oak Leaf Cluster is bestowed to the recipient of six awards for a particular decoration, replacing what would be five Bronze Oak Leaf Clusters.