The Quad Builds Strategic Depth undersea to combat China

Cables, Submarines, and Rare Earths, the Quad launches a new critical minerals alliance while India and Australia jointly enter the undersea domain. Strategic depth and autonomy now stretch from the sea floor to the industry floor.

On July 1, 2025, as the world’s attention lingered on tensions in the Taiwan Strait and South China Sea, a set of quieter but geopolitically significant moves reshaped the Indo-Pacific’s strategic architecture.

In Washington, the foreign ministers of the Quad alliance—India, Australia, the United States, and Japan—convened to reaffirm their shared vision for a free, open, and resilient region.

On the sidelines, India and Australia unveiled a bilateral undersea security pact, while the Quad formally launched a Critical Minerals Initiative.

Meanwhile, in New Delhi, the Japanese Embassy hosted high-level meetings with Indian battery recycling companies, signaling a regional response to China’s latest export restrictions on rare earth elements.

Together, these developments underscore a common reality: the Indo-Pacific is no longer defined only by surface diplomacy and naval deployments.

It is now a region where undersea cables, critical minerals, and industrial partnerships are just as vital to strategic autonomy as aircraft carriers or fighter jets.

Beneath the Waves: India–Australia Undersea Pact

The India–Australia agreement on undersea cable protection and seabed monitoring represents a new phase in bilateral defense cooperation with the Indian DRDO and Australia’s DSTG launching a joint research project for underwater submarine detection.

The pact includes provisions for geospatial intelligence sharing, coordinated sonar coverage, and the joint deployment of seabed sensors in the eastern Indian Ocean—an area where Chinese naval activity has quietly but steadily intensified.

Both countries have experienced unexplained disturbances and unauthorized surveillance near critical submarine cable routes—hidden arteries that carry over 95% of the world’s digital communications.

With growing concern over Chinese submarines operating under the radar, especially near Australia’s northern waters and India’s Andaman and Nicobar Command, the new agreement is designed to create real-time situational awareness of underwater threats.

Quad Expands its Strategic Toolkit

The undersea pact fits seamlessly into the broader framework of the Quad foreign ministers’ summit held on the 1st of July in Washington.

While previous Quad meetings were often criticized as symbolic, this summit delivered substantive action—especially with the launch of the Quad Critical Minerals Initiative.

The meeting also set the base for the upcoming Quad heads of state summit to be hosted by India.

In a joint statement, the ministers described the initiative as an “ambitious expansion of our partnership to strengthen economic security and collective resilience by collaborating to secure and diversify critical minerals supply chains.”

At a time when global supply chains are still reeling from pandemic disruptions, war-driven volatility, and coercive trade policies, this step marks a serious attempt to reduce the democratic world’s dependence on Chinese-controlled rare earths.

Recycling, Rare Earths, and Resilience: Japan Bets on India

While the Quad met in Washington, the Japanese Embassy in New Delhi convened a crucial round of industry engagement with Indian private sector players focused on battery manufacturing, rare earths, and supply chain resilience.

Just days earlier, China tightened its export controls on key rare earth elements—including neodymium, praseodymium, dysprosium, and terbium—which are essential for producing high-performance magnets used in EVs, smartphones, defense equipment, and renewable energy technologies.

In response, a Japanese business delegation is meeting with leading Indian battery recycling firms such as Vedanta and Lohum this week, in what is seen as a fast-tracked attempt to build alternative supply routes through urban mining and circular economy models.

With India’s battery recycling ecosystem rapidly expanding, Tokyo sees a viable fallback option to secure access to critical minerals, bypassing China-dominated chains.

Japan, a global leader in battery innovation and rare earth processing, needs stable sources and trusted partners.

India, with its mineral reserves and recycling potential, fits the bill. The Embassy’s engagement marks a broader pivot in Indo-Japanese ties—from infrastructure to industrial co-dependence.

These efforts also reinforce the Quad’s Critical Minerals Initiative which contribute to strategic autonomy through economic and defense bilateral activities.

Italy’s Emerging Role in Indo-Pacific Resilience

Amid these rapid shifts, a trilateral partnership between India, Japan, and Italy could emerge as a complementary node of industrial strength and geopolitical balance.

Established by Mario Draghi during his term as Prime Minister, this trilateral is underutilized at a time where the Euro-Atlantic partnership is at its volatile best. India offers scale, resources, and demand.

Japan brings capital, innovation, and precision. Italy, often overlooked, contributes advanced manufacturing, clean-tech leadership, and a legacy of industrial craftsmanship, especially in energy systems, automation, and materials science.

With strong bilateral relations already in place, Italy could act as a bridge between Europe and Asia, linking green transition goals with strategic supply chain security.

In a time when European policy on the Indo-Pacific remains fragmented, a focused trilateral can act with agility—supporting the Quad’s broader ambitions while building autonomous value chains in clean energy, semiconductors, and defense-critical technologies.

Strategic Depth is now undersea and extends to the supply chain

From submarine cables to rare earth metals, from seabed surveillance to battery recycling, the Indo-Pacific is being reshaped not just by force, but by infrastructure, minerals, and mutual trust.

The India–Australia undersea pact, the launch of the Quad’s Critical Minerals Initiative, Japan’s outreach to India’s recycling ecosystem, and the emergence of an Italy–India–Japan industrial corridor all reflect a common urgency: resilience without dependency.

This is not merely a pivot away from China—it is a pivot toward coordinated capacity-building. It’s a quiet transformation, but a decisive one.

In the Indo-Pacific of the future, strategic depth will no longer be measured in miles or missiles—but in cables, circuits, and the invisible elements that power modern life

(cnky.in)