JAPANESE troops have arrived in Darwin ahead of the trilateral Exercise Southern Jackaroo 2021, joining US Marines already undertaking training in the region.

The Japan Ground Self-Defense Force (JGSDF) soldiers will join their counterparts from Australia and the United States for the exercise in the Northern Territory June 15-25.

“The Japan Ground Self-Defense Force and the Marine Rotational Force – Darwin will bring more equipment this year, allowing for a more complex exercise to advance our ability to work together,” Lieutenant General Burr said.

The US wants to store munitions and defence equipment in Australia’s Top End under a bilateral force posture review to better prepare the ANZUS allies for growing strategic threats from China.

Mr Goldman said geostrategic tensions required a more “innovative defence partnership” between Australia and the US, including co-production of precision-guided weapons on Australian soil.

He said a bilateral force posture review working group, established following last year’s AUSMIN talks, had met for the first time ­earlier this month to discuss “a wide range of contingencies”.

Mr Goldman said it was too early to provide details on any new initiatives, but said pre-positioning US weapons in Australia offered strategic advantages.

Mr Goldman’s comments follow the US government’s announcement last year of a $15m contract to build an earth-covered weapons magazine and munitions conveyor at RAAF Base Tindal, south of Darwin, as well as upgraded fuel storages.

Australia should brace for a strong response by China after reports the Federal Government was in talks about strengthening US military capability in the Northern Territory, an expert has warned.

"Australia should expect a large amount of rhetoric from state-backed media or a foreign ministry spokesman," Dr Coyne said.

Acting US ­ambassador to Australia Mike Goldman said the closer links "just makes sense" in light of the "new geostrategic context" in the Asia Pacific region.

Australia is in talks with Washington to build US-designed missiles on home soil and to store a stockpile of American munitions in the NT, as tensions between China and the West soar.

While nothing has been finalised, Prime Minister Scott Morrison announced in March the government plans to shell out $1billion to start producing hi-tech guided missiles in Australia.

#redefiningAnzus

A US Marine in the NT has tested positive for COVID-19 while in quarantine.

The 19-year-old man arrived in Darwin on May 9 and tested positive in the past 24 hours.

The patient is asymptomatic and is under the care of NT Health at the NT Centre for National Resilience.

The total number of cases diagnosed in the Northern Territory is 172.

All cases have been related to international or interstate travel, with no cases of community transmission.