Australia has restricted military enlistment to citizens only, warning foreign nationals of potential legal consequences. The Australian Defence Force (ADF) limits applications to citizens of five countries, requiring residency rules. Foreigners may face legal issues in their home countries if they join. The ADF emphasizes that only Australian citizens can apply. Residency requirements are part of the enlistment process. Legal risks vary by country. The policy aims to ensure national security and legal compliance. The restriction applies to all foreign nationals. The ADF has not specified which countries are eligible. Residency duration is a key criterion. Legal consequences depend on individual circumstances. The policy reflects broader immigration and security strategies.