Southern Jackaroo

Words Captain Thomas H. de Vries, Marine Rotational Force – Darwin Photos Barrie Collins

In the heart of the Australian Outback, US

Marines, Australian soldiers, and Japan

Ground Self-Defense Force soldiers assembled and successfully conducted Exercise Southern

Jackaroo 2021 in June. The trilateral exercise, held over a twoweek period, was a tangible demonstration of multinational interoperability, where the forces worked through logistical and cultural challenges that tested the ability of each of the militaries to mutually support one another.

The exercise began with an opening ceremony at Robertson Barracks, home of the Australian Army’s 1st Brigade, where commanders addressed a formation of Australian, Japanese and US troops.

They spoke on themes of enhanced cooperation between each force and the importance of building deep, personal and professional relationships with one another.

To overcome communication barriers, the force integrated teams of military interpreters throughout the formations in order to best facilitate understanding amongst each other.

Southern

Jackaroo

Japanese liaison officer at 1st Brigade HQ Australian Army Captain David Ferwerda said they built a multi-rank team of interpreters, drawn from the ADF and JSDF, to bridge the gap from the lowest ranks up to the command group.

Training commenced with urban breaching operations at the Urban Operations Training Facility at Mount Bundey, where all three forces demonstrated their tactics, techniques and procedures for manoeuvring through urban terrain.

Leaders frequently reviewed the patrols and breaches to learn from one another and, if required, integrate squads in future operations.

Simultaneously, US cannoneers from Mike Battery, 1st Battalion, 7th Marine Regiment (Reinforced) and the Australian 103rd Battery, 8th/12th Regiment, Royal Australian Artillery, established a combined gun line of six M777 howitzers, where they participated in fire missions directed by US and Australian fire-support coordination centres.

MRF-D Command Element fires officer Captain Eric vanHorn said the time and effort that the Marines and their Australian friends invested during the exercise – and would continue to invest to advance interoperability – demonstrated the strength of the ANZUS alliance.

“Coordinating fires came easy to us because of a shared purpose, built upon a long history of partnership for more than a century,” Captain vanHorn said.

To conclude the first week of training, troops from all three militaries met at a combined marksmanship range, where snipers demonstrated advanced shooting techniques to engage targets at maximum effective range.

Japan Ground Self-Defense Force Colonel Kosyo Mizoguchi, commanding officer 50th Infantry Regiment, said the opportunities presented by training with Australian and US forces was very important.

“It is also very meaningful because Australia has very broad training areas, so we can conduct longrange shooting,” Colonel Mizoguchi said.

In the second week of training, all three militaries came together in a culminating live-fire event, where direct- and indirect-fire assets supported ground troops while assaulting multiple objectives.

During the event, weapons teams fired 400 mortars, 250 rounds of artillery, and thousands of rounds of machine-gun ammunition.

Most notably, troops also fired four FGM-148 Javelin anti-armour missiles at simulated enemy targets, as a powerful display of interoperability in support of manoeuvring ground forces.

During the assault, all three militaries seized objectives throughout Mount Bundey Training Area, enabling one another to move forward on their mission and demonstrate the ability to command and control fires and manoeuvre.

Although a challenging feat, the training the week before allowed the forces from the three nations to confidently perform this complex event in concerted synchronisation.

MRF-D commanding officer Colonel David Banning said successful integration of indirect fire, fire-support coordination, various types of heavy weapons and aviation fire support, was a big task.

“Any one of those things, just with your own unit, would be complicated,” Colonel Banning said. 1st Brigade commander Brigadier Ash Collingburn said Exercise Southern Jackaroo 21 had well prepared all involved for future challenges.

“I look at all of you, shoulder-toshoulder, and know that you stand ready for what challenges lie ahead,” he said.