More than half a trillion dollars will go towards Australia's defence forces by the end of the decade to combat "a period of profound uncertainty and disruption", according to the 2022/23 budget papers.
Almost half of the $575 billion spend will be pumped into defence capabilities, including $38 billion to boost the workforce by 18,500 personnel, $50 billion for frigates and destroyers, and $10 billion for naval infrastructure.
There is also $6.4 billion for Collins class submarines, $3.5 billion for up to 75 Abrams tanks and armoured vehicles and $1 billion for howitzers and resupply vehicles.
An additional $137 million will go towards maritime surveillance and Border Force's response capabilities to stop boats carrying asylum seekers, while the defence force will get an extra $75 million to protect Australia's maritime interests.
Just over $10 million has also been put aside for ongoing operations in the Middle East in the next financial year.
Defence spending is due to exceed two per cent of GDP this financial year and hit $48 billion in 2022/23.
