Download Strava, don some Lycra and get ready for Run Army 2024 on April 21.
Now in its fourth year, the event includes 10km and 5km tracks to promote physical and mental health, while raising funds for Legacy.
Queensland police, ambulance, and fire and emergency services will also join for the first time.
In Brisbane, you can enter solo, as a team, or take the family through the unique course starting at Southbank, passing iconic landmarks through the CBD, over the Story Bridge, along the riverbank, to finish at the wheel of Brisbane.
As you leave the start line, a Tiger armed reconnaissance helicopter will swoop in for an aerial show.
There'll be an assortment of military and police vehicles along the way, Army bands to keep the vibe pumping, and you'll finish under an archway formed by two M777 guns.
Keep an eye out on the course for Run Army mascot and ball chaser Rocket the Rescue Dog, an event ambassador who's committed to reducing stress and increasing workplace efficiency.
You can also participate in the Townsville satellite event, or there's a free virtual option.
The event attracted 5000 participants in Brisbane last year, and organisers aim to double that across both locations this year.
Marathon legend and event ambassador Robert De Castella said it was an opportunity to showcase, celebrate and recognise the significant contributions of Army.
"In the running scene there's nothing else like Run Army," he said.
"It gives us the motivation to target and focus on getting out the door and getting fit, while supporting worthy charities."
The event is close to De Castella's heart - his grandfather Brigadier William Hall was knighted for his work with war widows.
He also promoted the event within his Indigenous marathon foundation, providing First Nations people an opportunity to be involved while strengthening relationships with the Army.
Run Army has already raised more than $500,000 for Legacy, and organisers hope to expand the fundraising to charities supporting first responders and their families.
Entrants can choose which charity they wish to support when they register, and will receive an event T-shirt and a medal at the finish line shaped in the sixth pattern Rising Sun.
Each year the finishing medal pattern will rotate through the seven distinctive patterns.
Registration information and a training program is available on the Run Army website at runarmy.com.au