Up to 2200 US personnel will participate in the Marine Rotational Force Darwin (MRF-D), conducting crisis response exercises, engage with regional partners and more.

For the first time, US Army personnel will also deploy to work alongside the rotation.

MRF-D Commanding Officer Colonel Christopher Steele was excited for the rotation to begin.

“This year our Marines will be coming from Camp Pendleton in Southern California as the 1st Marine Expeditionary Force assumes this mission, working alongside our US Army and Australian Defence Force counterparts,” he said.

The Marines are expected to complete the rotation in Australia by October 2022.

A contingent of up to 2,200 U.S. Marines has begun arriving for a six-month rotation to Australia’s northern city of Darwin.

During their 11th deployment to Darwin since 2012, Marines will train with the Australian troops and other friendly forces to respond to a crisis in the region, the Marines said in their statement.

The force includes a command element from the 5th Marine Regiment, 1st Marine Division, with most Marines coming from Southern California. They’re supported by a detachment from U.S. Army Pacific, the statement said.

Up to 2,200 Marines from Camp Pendleton, Calif., will be in Darwin until the rotation wraps up in October, according to a statement from the Australia Defence Department.

The Marines are restricted to their Australian bases for their first seven days and then tested for COVID-19

The 2022 MRF-D will see up to 2200 US personnel conduct combined training with the Australian Defence Force (ADF) including crisis response exercises and engagement with regional partners.

This year, for the first time, US Army personnel will deploy to work alongside and support the MRF-D.

The US Marines are expected to complete the rotation in Australia in October 2022.

MRF-D is one of the United States Force Posture Initiatives that sits alongside an expanded program of Enhanced Air Cooperation between the Royal Australian Air Force and United States Air Force.

The procedures for managing MRF-D’s arrival, border entry protocols and possible cases of COVID-19 have been developed and agreed in full consultation with NT Health authorities :|

300 million litres of American-owned jet fuel will soon be stored on the outskirts of Darwin, increasing speculation the USA is preparing to expand its military presence in the Northern Territory.

On the back of the announcement of AUKUS, an alliance between Australia, the United Kingdom and the United States, the US charges d'affaires to Australia flagged a "bigger, more integrated, more ambitious" Marine Corps deployment.

The Biden administration has released some details of its global posture review, but the Pentagon document overseen by Defense Secretary Lloyd Austin will remain largely classified.

"In Australia, you'll see new rotational fighter and bomber aircraft deployments, you'll see ground forces training and increased logistics cooperation," US Under Secretary of Defense Mara Karlin told reporters.

"More broadly across the Indo-Pacific, you'll see a range of infrastructure improvements in Guam, the Commonwealth of the Northern Mariana Islands and Australia."

Dr Karlin added that the Indo-Pacific region was a major focus of the assessment, because of Mr Austin's emphasis on "China as the pacing challenge" for the department.

Earlier this year, the ABC revealed senior American and Australian officials had discussed options for expanded military cooperation, including a proposal to form a new joint US marines and ADF training brigade based in Darwin.