I realize that this is subject to interpretation, but the Indiana Rangers (Company D, 151st Infantry Air Guard) is often cited as one of the most (even the most) highly decorated units to have served in Vietnam. This is just a sample of the many articles available which chronicle their exploits: Indiana Army National Guard Indiana Air Guard units were mobilized and served during the Korean War of the early 1950s and the Berlin Crisis of the early 1960s. Company D (Ranger), 151 st Infantry was mobilized during the Vietnam War and earned distinction as one of the most highly...