This chapter considers how the foreign fighter has been appraised in Australian policy circles, mindful of relevant international comparisons while critiquing the approach in terms of law and public policy. It also considers different attitudes to radicalized fighters who actually went to fight in foreign theatres (for instance, Croatian Australians fighting in Yugoslavia during the 1960s and 1970s). What makes a radicalized fighter possess a resume that permits social integration or otherwise? The chapter suggests that the foreign fighter concept is problematic both as a concept and in terms of how it is realized. Returnees, notably from such theaters as the Middle East, require a complex array of social and policy responses. The Australian approach in this regard, notably in terms of cancelling citizenship, criminalizing travel and entry and presuming criminality by virtue of being a member of such organizations as Islamic State, threaten the rule of law, evades judicial scrutiny and are disproportionate. Deradicalization goals, to that end, risk being undermined.