Australia deepens US military ties as China rivalry reshapes Indo-Pacific defence

September 28, 2026 at 11:37 PM2 min

This digest was compiled by AI from multiple sources — links to the originals are below.

Australia is expanding joint military exercises and US troop deployments as its 2026 National Defence Strategy names China's military buildup a principal concern. The US Marine presence in Australia has grown from 200 in 2012 to about 2,500 today, with upgraded bases supporting American long-range bombers. The shift comes as Australian commanders describe preparing for a 'total war' scenario.

Key Facts

The US Marine deployment to Australia has grown from 200 personnel in 2012 to about 2,500 today.
Australia's 2026 National Defence Strategy identifies intense competition between the United States and China as an enduring feature of the strategic environment.
RAAF Tindal air base in the Northern Territory has been upgraded to support long-range American B52 bombers.
Exercise Southern Jackaroo involves Australian, American, and Japanese armed forces to strengthen defence cooperation across the Indo-Pacific.
Australian Army Brigadier Ben McLennan described training for a 'total war' scenario, comparing it to World War One and World War Two.

Military Expansion

The US Marine presence in Australia has risen from 200 personnel in 2012 to approximately 2,500 today. US Marine Kevin Hicks described the force as 'America's 911 response force'. RAAF Tindal air base in the Northern Territory has been upgraded to support long-range American B52 bombers. Exercise Southern Jackaroo involves Australian, American, and Japanese armed forces to strengthen defence cooperation across the Indo-Pacific.

Strategic Rationale

Australia's 2026 National Defence Strategy states that intense competition between major powers, principally the United States and China, will be an enduring feature of the strategic environment. The strategy says China continues to undertake the largest military build-up in the world today without the transparency or strategic reassurance the region expects. Australian Army Brigadier Ben McLennan said the country is rehearsing for a 'total war' scenario, comparing it to World War One and World War Two. Brigadier McLennan declined to identify a specific enemy when asked who the military is preparing to fight.