In the careful architecture of regional diplomacy, a single hypothetical can carry the weight of history. When a senior Australian defence figure named Indonesia as an imagined military adversary during public testimony on the Aukus submarine program, the remark — intended as strategic illustration — became something else entirely: a reminder that the language of security planning and the language of partnership do not always speak in the same register. The incident, unfolding in September 2026, asks a question that haunts every nation building power in a crowded neighbourhood — can a country