What’s happening?
21-year-old Medic Seaman Sienna Williams is taking part in her first Exercise Kakadu aboard HMAS Choules.
The ship is transiting through the Prince of Wales Channel in northern Australia as part of the large-scale naval training exercise.
Exercise Kakadu brings together Australia and 18 partner nations to build readiness and capability for shared security challenges.
Seaman Williams, who grew up in Rockhampton, joined the Navy in 2023 after being inspired to care for others while supporting a close family member’s health.
In her role on board Choules, she works closely with crew across all ranks and supports the ship’s ability to operate at sea.
Why it matters?
The exercise strengthens cooperation between nations while preparing forces for real-world maritime challenges.
For Seaman Williams, it also highlights the critical role medics play in keeping ships operational and crews safe.
Her work reflects how personal experiences can lead to careers that support both individuals and national service.
Local Impact
Seaman Williams’ journey from Rockhampton to an international naval exercise highlights opportunities for regional Queenslanders in defence careers.
Her role shows how local talent is contributing to global operations and multinational cooperation.
By the numbers
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More than 6000 personnel are involved in this year’s Exercise Kakadu, supporting a wide range of maritime training activities.
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A total of 18 partner nations are participating alongside Australia, strengthening regional cooperation and shared capability.
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The medical team on HMAS Choules includes three personnel, working across varied medical situations at sea.
Zoom In
As a medic aboard Choules, Seaman Williams is part of a small but essential team responsible for crew health.
“For Kakadu, the medical team has expanded as the ship leads a task group of five regional partner nation ships.”
This has allowed her to work closely with medical counterparts across different vessels as the group heads toward Sydney.
“I’m enjoying the challenges of putting my training to good use while working with my counterparts on the other ships,” she said.
“It’s important for us to overcome language barriers and share specific skill sets that we have – all for the one goal of meeting the patient’s needs.”
Her experience spans a wide range of medical situations, reinforcing the responsibility that comes with the role.
She said, “I always knew that I wanted to be doing something in the medical field to help others and to put them before myself.”
“I know it sounds cheesy, but we are so lucky to be born in Australia, and I wanted to give back.”
Zoom Out
Exercise Kakadu continues to serve as a key platform for multinational training and cooperation in the region.
It tests coordination, communication, and readiness across naval forces from multiple countries.
The inclusion of expanded medical teams reflects the importance of shared support systems during joint operations.
What To Look For Next?
The task group will continue its journey toward Sydney while completing coordinated training activities.
For Seaman Williams, the experience builds on her early career in the Navy, with more opportunities ahead as she develops her medical skills in maritime settings.
Source: Australian Government Defence
