Australia's defence budget is the highest in Oceania. The defence budget of Australia is estimated at US$25,912M at around 1.90% of its GDP. Its percentage of GDP allocated to defence spending is the highest in Oceania.

Australia has the largest military force in Oceania. Australia has a military that is composed of 58,600 active personnel (largest in Oceania) and 30,100 in reserve, totalling 88,700 or 3.8 military personnel per 1000 in population. Its per-capita military is the second-highest in Oceania.

Australia's battle tank force is the largest in Oceania. On land, Australia has a mobile force of 59 tanks. For aerial defence, Australia has an air force of 146 military aircrafts and 39 attack helicopters.

Australia has the largest naval fleet in Oceania. Australia has a naval fleet of 21 vessels, including 6 non-nuclear submarines. Rounding up the fleet of warships are 10 frigates and 2 destroyers.

 

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