The project is expected to focus on autonomous underwater vehicles capable of conducting surveillance, intelligence gathering, and maritime security operations across vast ocean areas. Defense officials say the technology could improve the ability of allied forces to monitor critical sea routes and respond to emerging threats.
The initiative is being developed under broader security cooperation efforts designed to strengthen military capabilities and maintain stability in strategically important waterways.
Security analysts believe underwater drones are becoming an increasingly important part of modern naval operations because they can operate for long periods while reducing risks to human crews.
The announcement comes as competition over maritime influence continues to grow across the Indo-Pacific, with regional powers investing heavily in advanced naval and autonomous technologies.
Officials from all three countries say the program is intended to enhance cooperation, improve defense innovation, and support long-term regional security objectives.