Australia is deeply connected to the ocean. A uniquely large island nation with a long coastline and few close neighbours, Australia benefits from an immense maritime domain, the third largest in the world. However, with relatively few maritime enforcement resources and an extreme dependence on sea bourne trade, maritime enforcement Australia faces an extremely difficult task in monitoring and ensuring compliance with national laws throughout its maritime jurisdiction. We highlight current threats to Australia\u27s marine environment including protection of natural resources, piracy, terrorism and illegal arrivals, and examine Australia\u27s capabilities, legislation and approach to combating these risks. Essential to Australia\u27s strateg...