In a significant milestone, Japan has secured its largest-ever Japan defense deal as Australia confirmed it will purchase 11 frigates. On Tuesday, Australian Defense Minister Richard Marles announced the agreement, choosing Japan’s upgraded Mogami-class warships. This decision followed a competitive bidding process for the AU$10 billion (US$6.48 billion) Project Sea 3000. Notably, Japan’s Mitsubishi Heavy Industries (MHI) beat Germany’s Thyssenkrupp Marine Systems to become Australia’s partner.
Marles explained that the Mogami-class frigates best meet Australia’s immediate capability and strategic needs. Furthermore, he stressed that the vessels offer quick delivery, proven reliability, and high-end features. Meanwhile, in Tokyo, Japan’s Defense Minister Gen Nakatani praised the outcome. He called the selection a major step in enhancing bilateral defense ties. Additionally, he added that it reflects strong trust in Japan’s advanced technology and the importance of interoperability.
This Japan defense deal comes at a time of growing strategic cooperation between the two nations. Although both sides denied that geopolitical factors influenced the decision, analysts noted that concerns over China likely played a role. As a result, the first three frigates will be built in Japan by MHI, scheduled for delivery starting in 2029. Afterward, Australia will produce the remaining ships locally in Western Australia with Austal handling production.
Pat Conroy, Australia’s Defence Industry Minister, confirmed that Japan allocated three production slots for the Australian ships. Moreover, he emphasized Tokyo’s ability to meet strict deadlines. Japan’s experience in building 12 Mogami-class frigates gave it a critical advantage. According to Nakatani, Japan’s continuous production capacity and public-private cooperation contributed significantly to the win.
Notably, Japan allowed joint development and eased some export restrictions for this project. This marked a first in Japan’s defense industry strategy. In addition, marketing efforts included promotional videos and live ship visits to Australia. Experts, including Simon Chelton and Kym Bergmann, agree the decision shows growing confidence in Japan’s defense capabilities. They also note that the ships’ stealth, efficiency, and lower crew requirements made them highly attractive.
The Mogami-class frigates also support long-range missiles, air-defense systems, and unmanned technologies. Consequently, these features matched Australia’s goal to modernize its navy and secure critical maritime routes. By 2030, the first ship is expected to become operational. Meanwhile, Japan aims to finalize all contracts with Australia by early 2026. As Japan expands globally, this Japan defense deal sets a powerful precedent. Therefore, Tokyo’s success may now influence future defense exports worldwide.
