 The most decorated Native American in the history of the United States Army is Pascal Poolaw, who, after World War II, went on the serve in the Korean War and the Vietnam War, earning a Distinguished Service Cross, four Silver Stars, five Bronze Stars, and three Purple Hearts.Although many Native Americans received recognition for their military service in terms of awards, these awards were later used during the termination period by the Bureau of Indian Affairs as proof that Native Americans were eager to assimilate into American culture.In February 1942, a civilian named Philip Johnston came up with the idea of using the Navajo language as military code.