India and Australia sign key defence agreements to strengthen military partnership
Noor Mohmmed
10/Oct/2025

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India and Australia have inked major defence pacts expanding cooperation across military, maritime, air, and industrial sectors to strengthen regional security.
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The agreements mark a milestone in bilateral defence ties, boosting joint exercises, technology exchange, and strategic coordination in the Indo-Pacific.
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Both nations aim to counter emerging security challenges, enhance interoperability, and build a sustainable defence industry partnership for long-term stability.
In a landmark development reflecting the growing convergence between two major Indo-Pacific powers, India and Australia have signed a series of key defence agreements aimed at enhancing military cooperation, joint operations, and industrial collaboration across multiple domains — land, air, maritime, and defence manufacturing.
The agreements were formalised during high-level talks held in New Delhi, where India’s Defence Minister Rajnath Singh and Australia’s Deputy Prime Minister and Defence Minister Richard Marles reaffirmed the two nations’ shared commitment to regional peace, security, and stability.
This marks one of the most comprehensive frameworks ever agreed upon between the two countries, signalling their intent to move beyond traditional military cooperation into deeper strategic and industrial integration.
Strengthening a growing partnership in the Indo-Pacific
The Indo-Pacific region has emerged as the world’s most dynamic yet volatile geopolitical theatre. As both India and Australia share democratic values, maritime interests, and security challenges, the latest agreements represent a strategic step toward countering regional instability and promoting a free, open, and rules-based Indo-Pacific.
In his remarks following the signing ceremony, Defence Minister Rajnath Singh stated,
“Our cooperation with Australia reflects our shared vision for a secure and prosperous Indo-Pacific. These agreements will enhance interoperability and enable us to work more closely in every sphere of defence.”
His Australian counterpart, Richard Marles, echoed this sentiment, emphasising that the partnership was built on trust, transparency, and a common strategic outlook. He added,
“Australia and India stand shoulder to shoulder as partners committed to regional stability. These agreements provide a new level of depth to our defence cooperation.”
Details of the defence agreements
The newly signed framework covers a wide spectrum of defence activities and cooperation mechanisms. Some of the major highlights include:
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Operational Cooperation:
Both countries agreed to conduct more frequent joint military exercises, enhance personnel exchange, and establish shared logistics support for defence forces operating in the Indo-Pacific region. -
Maritime Security and Naval Cooperation:
Recognising the growing challenges in the Indo-Pacific, including freedom of navigation, illegal fishing, and security of sea lanes, the two sides reaffirmed their commitment to joint maritime patrols, information sharing, and collaboration on submarine and anti-piracy operations. -
Defence Industrial Collaboration:
A new Defence Industry Cooperation Framework was established to promote co-development and co-production of defence technologies. Indian and Australian defence firms will now be able to collaborate on innovation, research, and manufacturing projects aligned with India’s Make in India and Atmanirbhar Bharat (self-reliant India) initiatives. -
Air Force and Army Interoperability:
Both nations will conduct joint air exercises and land warfare training programs to improve interoperability and coordination among their armed forces. This includes advanced training modules on cyber defence, surveillance, and electronic warfare. -
Mutual Logistics Support Agreement (MLSA) Expansion:
The countries have expanded the existing MLSA, allowing greater access to each other’s military bases, repair facilities, and supply chains. This will enhance operational reach for both sides during humanitarian, disaster relief, and joint missions. -
Intelligence and Technology Exchange:
India and Australia agreed to deepen cooperation in intelligence sharing, especially regarding maritime domain awareness and emerging security threats like cyber warfare and artificial intelligence in defence.
Historical background of India-Australia defence ties
Though India and Australia have long enjoyed friendly relations, their defence partnership has seen exponential growth in the past decade.
The 2006 Defence Framework Agreement laid the foundation for structured cooperation, which was significantly upgraded with the signing of the Comprehensive Strategic Partnership (CSP) in 2020.
The two countries have since participated regularly in the MALABAR naval exercise, alongside the United States and Japan, under the Quadrilateral Security Dialogue (QUAD) framework. This platform has strengthened coordination among the four democratic nations in ensuring a secure Indo-Pacific maritime environment.
The new agreements now take this collaboration a step further — focusing not just on joint exercises, but on industrial collaboration, joint R&D, and supply chain resilience for critical defence technologies.
Boosting defence manufacturing and technology cooperation
One of the most transformative aspects of the new pacts is the emphasis on defence industrial cooperation. Both India and Australia have committed to sharing research capabilities, defence manufacturing expertise, and emerging technologies such as unmanned systems, artificial intelligence (AI), and advanced radar systems.
Indian defence firms — including Bharat Electronics Limited (BEL), Hindustan Aeronautics Limited (HAL), and Bharat Dynamics Limited (BDL) — are expected to explore partnerships with Australian firms like Austal, BAE Systems Australia, and EOS Defence Systems.
This aligns perfectly with India’s goal of becoming a global hub for defence production, while also allowing Australia to diversify its defence partnerships beyond its traditional Western allies.
The two nations will also collaborate on supply chain resilience for critical materials, particularly rare earth elements, which are vital for the production of advanced defence systems.
Strategic context: countering regional challenges
The agreements come at a time of growing regional uncertainty, driven by territorial disputes in the South China Sea, military build-up in the Indo-Pacific, and increasing competition for influence between major powers.
Both India and Australia share concerns over China’s expanding military footprint and aggressive maritime activities, particularly around strategic choke points such as the Malacca Strait and the South China Sea.
By deepening defence cooperation, New Delhi and Canberra aim to strengthen their strategic autonomy and contribute to collective regional security. Analysts see this partnership as part of a broader effort to balance China’s assertiveness and maintain a rules-based order in the Indo-Pacific.
The role of the QUAD and broader regional partnerships
The India-Australia partnership is also an important pillar of the QUAD alliance, which includes the United States and Japan. The QUAD focuses on regional stability, maritime security, and infrastructure development in the Indo-Pacific.
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