India and Australia have significantly deepened their defense ties in 2025, building on a Comprehensive Strategic Partnership launched in 2020. Over the past five years the two democracies, both heavily dependent on secure sea lanes, have drawn closer around shared Indo-Pacific interests. New high-level meetings and agreements this year signal an “enormous deepening” of cooperation, especially in defence technology and industry.
India and Australia formally elevated their relationship in June 2020, declaring a Comprehensive Strategic Partnership (CSP) and a joint vision for maritime security in the Indo-Pacific. This marks a dramatic shift from Cold War-era distances: as External Affairs Minister S. Jaishankar noted, a decade ago “no one would have believed” that Australia would become one of India’s closest security partners. In practice, the two countries have since institutionalized cooperation with annual prime ministerial summits and regular 2+2 dialogues of their foreign and defense ministers. Defense ties have emerged as a keystone of the partnership. In November 2023, for example, India and Australia concluded their second 2+2 meeting, reaffirming that bilateral defense cooperation is a key pillar of their CSP. They also signed economic and other pacts along the way, notably the Economic Cooperation and Trade Agreement (ECTA) in late 2022 and an India-Australia critical minerals partnership, but it is the security dimension that has accelerated most recently.
In 2025, both countries ramped up their defense dialogues. In March 2025, New Delhi hosted the 9th Australia-India Defense Policy Talks. This routine but important meeting brought senior officials together to review recent cooperation and plan next steps. The Indian side was led by Joint Secretary Amitabh Prasad, and the Australians by senior defense policy official Bernard Philip. The talks affirmed progress on existing projects and agreed to prepare for a third India-Australia 2+2 dialogue to be held in Australia later in 2025. They set priorities in maritime domain awareness, information sharing, and defence R&D, and urged agencies on both sides to accelerate collaboration in defence science and technology. The Australians even inspected India’s Mazagon Dock shipyard during the visit, underscoring interest in shipbuilding cooperation.
The biggest bilateral meeting of the year came in early June. Australian Deputy Prime Minister and Defence Minister Richard Marles visited New Delhi on June 3-4, 2025 as part of a regional tour. He held a ceremonial reception and a joint 2+2 meeting with India’s Defence Minister Rajnath Singh. According to the Indian Ministry of Defence, the two leaders “agreed to expand and diversify their defence industry collaboration” and explore joint projects in defence science and technology. They also “welcomed the signing of the Australia-India Joint Research Project”, a new bilateral initiative in defence technology. In public remarks and joint releases, both sides strongly condemned terrorism, including the recent Pahalgam attack, and pledged to work together “to combat terrorism in all its forms.” The discussions ranged over cyber and emerging technologies, maritime and hydrographic security, and other shared concerns. Significantly, the meeting marked the fifth anniversary of the Comprehensive Strategic Partnership, and both leaders celebrated how far ties have come.
A central theme of 2025 cooperation has been the defense industry and technology. At the June meeting, both governments committed to “intensify and diversify” defense manufacturing collaboration. In practice, this means linking India’s large market and “Make in India” drive with Australia’s specialized industry. India remains the world’s second-largest arms importer but is seeking to upgrade its own defense production. Australia, meanwhile, has many small and medium defense firms eager to export or co-produce with India. Security analysts note that while Australia’s large OEMs often sell to India via third-country licenses, real opportunities lie in partnerships between India’s dynamic defense R&D sector and Australia’s niche technology makers. Both sides have agreed to identify and fast-track joint research projects. For example, their June 2025 talks specifically set a timeline to advance defense science and technology projects ahead of the next 2+2 meeting.
So far, details of the industrial projects are limited. No major weapons sale has been announced, and each country remains cautious on transferring sensitive technologies. Instead, early collaboration may focus on non-lethal and dual-use areas: electronic components, communications systems, unmanned vehicles, etc. In parallel, both governments are reforming export rules. Australia in 2025 released its latest Defense Export Catalogue, emphasizing high-tech collaborations, and India is reviewing its defense procurement policy to better accommodate joint ventures. These policy shifts aim to remove long-standing barriers to co-production. If successful, we may see Australian firms helping meet India’s procurement needs (for example, in aerospace and naval equipment), and Indian companies gaining access to Australian defense markets.
The 2025 India–Australia defense engagements carry broader regional significance. As two large maritime democracies, their closer alignment bolsters a balance of power in the Indo-Pacific. Both countries explicitly cited a “free, open, rules-based Indo-Pacific” as their shared goal. For India, partnering with Australia is part of its strategy to engage its eastern flank and support fellow Quad members (including Japan and the US) in managing China’s rise. Australia similarly views India as a “top-tier defence partner”, reflecting convergence on handling regional challenges like an assertive China. Together they cover opposite ends of crucial ocean trade routes: India dominates parts of the Indian Ocean and South Asia, while Australia is a key Pacific power. Enhanced Indian-Australian cooperation thus helps secure vital sea lanes and provides mutual assurances–for example, by hosting each other’s military assets under logistic pacts.
Strategists also note timing. In an unsettled global environment (ongoing conflicts in Ukraine and Gaza, uncertainty in US policy, etc.), India and Australia are hedging by relying on each other. Australia’s gift of a patrol boat to the Maldives during Marles’s 2025 visit, and India’s increased aid to Pacific islands, exemplify how each is extending its security footprint in the other’s neighborhood. Against this backdrop, analysts argue that a strong Indo-Australian partnership contributes to regional stability. It sends a message that like-minded powers will uphold multilateral norms rather than yield to unilateral pressure. As a CUTS International report puts it, India and Australia “share common interests in safeguarding maritime security” and have the potential to shape a balanced regional order. Their cooperation thus enhances not just bilateral interests, but also the collective goal of a stable Indo-Pacific.
In sum, 2025 has seen India and Australia make concrete strides in defense industry collaboration, backed by political will on both sides. High-level meetings and new agreements have translated strategic goodwill into action: expanding joint R&D, exploring co-production projects, and integrating military logistics and exercises. For India, the partnership offers access to advanced technologies and deeper engagement beyond the neighborhood. For Australia, it provides a reliable partner to share security burdens and diversify defense relationships. In the broader Indo-Pacific, these developments reinforce a network of cooperation aimed at preserving an open regional order. As both governments have noted, the next few years will be pivotal, with plans already in train to hold another 2+2 ministerial meeting in Australia and to roll out joint projects under their defense R&D pact. If momentum continues, India–Australia ties could become a model for how emerging powers co-create capacity and stability across the Indian and Pacific Oceans.