1939-1945 20thcentury [fic] aboriginalaustralian aboriginalaustralians armedforces australian campaigns codeandcipherstories communications cryptography dictionaries fiction history indian indianparticipation indians indiansofnorthamerica indiantroops juvenilefiction juvenileliterature militaryparticipation nativeamericans navajoindians navajolanguage new pacificocean participation personalnarratives southwest warfare worldwar yolngu(australianpeople)