India, Australia Advance Quad Maritime Surveillance
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- Rajnath Singh and Richard Marles co-chaired the second India-Australia Defence Ministers' Dialogue at the Manekshaw Centre in New Delhi on June 1, 2026, reviewing progress since the inaugural October 2025 meeting and framing defence ties as a high point in the bilateral relationship.
- India and Australia are finalising a renewed Joint Declaration on Defence and Security Cooperation alongside a Joint Maritime Security Collaboration Roadmap, with Marles confirming defence will be a major plank of the upcoming Modi-Albanese summit.
- Maritime security dominated the talks, with both sides committing to enhanced domain awareness through patrol aircraft operations, undersea surveillance, and closer Indian Coast Guard–Australia Maritime Border Command ties; Marles stressed that international rules must apply 'not only on the surface but also beneath the seabed.'
- The two countries agreed to begin work on a Memorandum of Understanding on the Provision of Defence Articles and Defence Services and expressed interest in joint work on advanced technologies including sensor systems, with Australia inviting India to the 2026 Australian Defence Science, Technology, and Research Summit.
- Both ministers expressed strong support for the Quad Indo-Pacific Maritime Surveillance Collaboration (IPMSC), to be implemented initially in the Indian Ocean Region through subject matter expert exchanges and tabletop exercises, and agreed to work toward a Common Operational Picture across the Indo-Pacific.
- Military-to-military engagement is expanding across exercises Milan, Kakadu, Talisman Sabre, Pitch Black, and Austrahind, with both sides agreeing to continue reciprocal aircraft deployments to build operational familiarity and joint air-to-air refuelling arrangements.
Why it matters: By backing the Quad IPMSC with a concrete Indian Ocean Region rollout, drafting a defence articles MoU, and committing to undersea surveillance cooperation, India and Australia are shifting from declaratory partnership toward operational interoperability — giving the Quad a tangible maritime security deliverable before the Modi-Albanese summit and reinforcing a rules-based order grounded in UNCLOS.
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