Australia
The military organization of Australia is called the Australian Defense Forces, which consists of the three essential ground, ocean, and air units. While all of them, when established, were separate before, the ADF was constituted later to bring them under a single command.
The ADF is responsible for all armed conflicts and the protection of the national interests of the country. With about 60K active personnel in 2021, it has a budget of almost $30 billion. The budget also curtails the purchase and maintenance of high-tech equipment, including a range of aircraft, guns, artillery, warships, ground vehicles, and much more.