India and Japan on Thursday signed a memorandum of arrangement to deepen maritime security cooperation, focusing on closer ties between the Indian Navy and the Japan Maritime Self-Defense Force—the latest in a series of steps to bolster bilateral military ties—during talks between defence minister Rajnath Singh and his Japanese counterpart Shinjiro Koizumi in Delhi.

“The arrangement provides a framework for information sharing in the field of maritime domain awareness (MDA), and enhanced cooperation in areas such as search and rescue (SAR) and humanitarian assistance and disaster relief (HADR),” the two sides announced in a joint statement.
The two ministers also agreed to advance reciprocal access to ship-repair facilities, with a formal arrangement expected to be concluded soon.
Another outcome of the delegation-level talks was the two leaders agreeing to set up a working group to boost cooperation in a raft of areas including operations, intelligence, equipment, technology and industrial cooperation. “The working group will maximise synergies among the various areas of cooperation, and accelerate their implementation,” the statement said.
Singh and Koizumi met weeks after India and Japan unveiled measures to expand cooperation in defence, energy security, rare earths and AI, and finalised a joint roadmap on economic security at the 16th India-Japan Summit, where Prime Minister Narendra Modi and his Japanese counterpart Sanae Takaichi stressed the importance of mutual trust in a world order facing growing uncertainty.
Singh and Koizumi reaffirmed their commitment to boosting defence cooperation to promote a free and open Indo-Pacific. India has consistently called for a free, open and inclusive order in the vast Indo-Pacific region, pivoting on respect for the sovereignty and territorial integrity of all nations while stressing the peaceful resolution of disputes through dialogue and under the framework of international laws. Challenges in the Indo-Pacific include China’s carefully calculated power play for influence and defending the rules-based international order.
{{/usCountry}}Singh and Koizumi reaffirmed their commitment to boosting defence cooperation to promote a free and open Indo-Pacific. India has consistently called for a free, open and inclusive order in the vast Indo-Pacific region, pivoting on respect for the sovereignty and territorial integrity of all nations while stressing the peaceful resolution of disputes through dialogue and under the framework of international laws. Challenges in the Indo-Pacific include China’s carefully calculated power play for influence and defending the rules-based international order.
{{/usCountry}}“The two ministers concurred on the importance of sharing assessments of the regional and international security environment between the two countries at a time of heightened global tensions. They expressed their strong opposition to any unilateral actions that impede freedom and safety of navigation and overflight, as well as any attempts to change the status quo by force or coercion.”
Singh described the meeting as “a milestone for Indo-Pacific stability.”
“An important step towards stability in the Indo-Pacific region! We exchanged views centring on strengthening maritime security cooperation, promoting defence technology cooperation under the Make in India initiative, and expanding strategic trust,” he wrote on X.
The two leaders agreed to strengthen bilateral coordination for protecting sea lines of communication through mutual visits by warships and naval units, joint exercises, personnel exchanges and logistics support, including the use of ports, maintenance and repair facilities. The ministers agreed “to maximise synergies to enhance mine countermeasures capabilities and explore the possibility of joint development in naval shipbuilding and design by leveraging Japan’s technological expertise and India’s production capabilities.”
“With a view to further advancing cooperation among the services of the two countries, the two ministers concurred on promoting exchanges between their respective special operations forces and pursuing cooperation with India’s integrated theatre commands following their establishment,” the joint statement added.
This marks a rare, and possibly the first, reference to India’s planned theatre commands in a joint statement. The mention comes at a pivotal moment as the country takes steps to advance theaterisation, a long-awaited reform designed to integrate the military’s resources for future conflicts.