Rajnath Singh meets Australia's Marles at ADMM-Plus sidelines
Synopsis
Key Takeaways
On the sidelines of the ASEAN Defence Ministers' Meeting-Plus (ADMM-Plus) on Wednesday, October 28, 2026, Union Defence Minister Rajnath Singh held a bilateral meeting with Australia's Deputy Prime Minister and Defence Minister Richard Marles — a encounter that put India-Australia defence interoperability and Indo-Pacific security squarely back on the agenda.
What the two ministers discussed
Singh described the talks as 'productive', covering three specific pillars: reviewing bilateral defence cooperation, enhancing military interoperability, and addressing regional security challenges. The framing was deliberate — interoperability is the operational bridge between two militaries that want to work together in a crisis without a formal alliance treaty binding them. It signals intent without obligation.
Singh underlined India's position clearly: 'India places great value on its Comprehensive Strategic Partnership with Australia for a free, open, and secure Indo-Pacific.' The phrase 'free, open, and secure' is the standard Quad-aligned vocabulary — a coded but unmistakable reference to concerns about Chinese assertiveness in regional waters.
The Comprehensive Strategic Partnership at six years
The India-Australia Comprehensive Strategic Partnership was elevated during a virtual leaders' summit in June 2020, covering defence, trade, education, and regional cooperation. That upgrade also birthed the annual 2+2 Foreign and Defence Ministers' dialogue — institutionalised in 2019 — which has become the primary mechanism for syncing the two countries' strategic positions.
On the military side, Australia's entry into the Malabar naval exercise series from 2020 onwards marked a concrete, practical step beyond diplomatic language. Malabar, originally a bilateral India-US drill, now includes Japan and Australia — making it the Quad's de facto naval rehearsal. Each edition builds the procedural muscle memory that 'interoperability' actually means.
ADMM-Plus as a strategic platform
The ADMM-Plus is an annual multilateral forum that brings together defence ministers from the ten ASEAN nations and eight dialogue partners — including India, Australia, the United States, China, Japan, and South Korea. For New Delhi, it serves a dual purpose: engaging ASEAN partners on shared security concerns while using the sidelines for high-value bilateral conversations like this one with Marles.
The forum's multilateral architecture gives India room to advance its Indo-Pacific agenda — connectivity, maritime security, humanitarian assistance — while simultaneously reinforcing its 'Act East' policy credentials. Bilateral pull-asides at ADMM-Plus have increasingly become as important as the plenary sessions themselves.
India-Australia defence ties: the pattern to watch
Rajnath Singh has been the face of India's defence diplomacy through a period of sustained acceleration — from the Galwan crisis of 2020 onwards, New Delhi has moved to lock in defence relationships with like-minded Indo-Pacific partners at a pace unseen in earlier decades. Australia fits that template precisely: a fellow Quad member, a Five Eyes-adjacent partner, and a country with direct Indo-Pacific maritime exposure.
The next concrete test of Wednesday's conversations will be the next scheduled India-Australia 2+2 ministerial dialogue and any fresh logistics or information-sharing agreements that follow. The language of 'interoperability' only counts when it shows up in joint exercise schedules and signed frameworks.