The Indian Navy's indigenous guided-missile stealth frigate INS Sahyadri (F49) departed Yokosuka Naval Base in Japan on 13 November 2026 following the successful conclusion of Exercise MALABAR 2026, the Ministry of Defence (MoD) confirmed in an official statement. The annual multilateral maritime drill brought together the naval forces of India, Japan, the United States, and Australia — the four Quad partner nations — for a combined harbour and sea phase spanning 5–12 November.

What the Sea Phase involved

The Sea Phase, conducted south of the Kanto region on Japan's main island of Honshu, featured an intensive schedule of maritime operations. According to the MoD statement, drills included Anti-Submarine Warfare (ASW), Visit, Board, Search and Seizure (VBSS) operations, Maritime Interdiction Operations, gunnery exercises, replenishment approaches, and cross-deck landings. 'These engagements provided valuable opportunities to enhance interoperability, operational coordination and mutual understanding among participating navies,' the ministry said.

Assets deployed by each nation

The Japan Maritime Self-Defence Force (JMSDF) deployed helicopter destroyer JS Ise (DDH-182), frigate JS Mogami (FFM-1), a submarine, and a P-1 Maritime Patrol Aircraft. Australia contributed frigate HMAS Stuart (FFH153) and a Royal Australian Air Force P-8A Poseidon maritime patrol aircraft. India was represented by INS Sahyadri, an indigenously built warship from the Eastern Fleet.

Harbour Phase and diplomatic milestones

The Harbour Phase saw operational synchronisation, cross-deck visits, sporting engagements, and cultural activities designed to deepen bonds among participating naval personnel. Notably, on 6 November, India's Ambassador to Japan, Nagma Mallick, and Vice Admiral A N Pramod, Deputy Chief of the Naval Staff, hosted a deck reception aboard INS Sahyadri to mark the 75th anniversary of India-Japan diplomatic relations — underscoring the strategic significance layered into this year's edition of the exercise. The frigate had arrived at Yokosuka on 4 November and was accorded a ceremonial welcome by the JMSDF.

Broader strategic context

The MoD statement said the exercise's conclusion 'reaffirmed the shared commitment of participating navies to maritime cooperation and collective security in the Indo-Pacific, in consonance with India's vision of MAHASAGAR (Mutual and Holistic Advancement for Security and Growth Across Regions).' This comes amid intensifying great-power competition in the Indo-Pacific, where coordinated Quad maritime presence is increasingly seen as a signal of collective resolve. INS Sahyadri had arrived in Japan after participating in the bilateral India-Republic of Korea Navy (IN-RoKN) exercise at Busan — part of a broader regional maritime engagement tour. Last year's Malabar, held from 10–18 November, had its harbour phase in Guam, reflecting the exercise's rotating geography across the Indo-Pacific.

What comes next

With MALABAR 2026 concluded, attention will turn to whether the interoperability gains — particularly in ASW and VBSS — translate into more integrated operational protocols among Quad navies. India's expanding indigenous shipbuilding capability, demonstrated by INS Sahyadri's deployment, also signals a broader shift toward self-reliant naval power projection in the region.