Master10
Defence & Security20 Concepts & Facts

ADMM-Plus Maritime Security Joint Cooperation Activity: Indian Navy Subic Bay Drills

Reviewed by the Master10 Editorial Board for accuracy, clarity and competitive-exam relevance.Editorial Policy
The ADMM-Plus Maritime Security Joint Cooperation Activity represents an official multilateral naval exercise convened under the Experts’ Working Group on Maritime Security of the ASEAN Defence Ministers’ Meeting Plus. Established in 2010, the ADMM-Plus functions as the premier defense dialogue architecture connecting the ten member states of the Association of Southeast Asian Nations with eight dialogue partners: India, Japan, the United States, Australia, China, Russia, South Korea, and New Zealand. Operating within the international legal framework established by the 1982 United Nations Convention on the Law of the Sea, the maritime cooperation activity provides a standardized operational platform to enhance tactical interoperability, develop mutual confidence, and institutionalize common rules of engagement across vital Indo-Pacific sea lanes.

Hosted by the Philippine Navy and co-chaired alongside the Japan Maritime Self-Defense Force at Subic Bay, the 23rd iteration of the activity brought together naval detachments for structured harbor and sea phases. The Indian Navy deployed frontline stealth frigate INS Sahyadri and missile corvette INS Kulish to execute complex operational maneuvers. Harbor proceedings emphasized Subject Matter Expert Exchanges covering the ASEAN Guidelines for Maritime Interaction, legal frameworks governing maritime domain awareness, and environmental spill containment. The subsequent sea phase tested multinational operational cohesion through coordinated search and rescue patterns, hydrographic survey data exchange, vessel casualty evacuation, deck landing qualifications, and maritime intelligence, surveillance, and reconnaissance protocols designed to assist stranded or distressed commercial vessels.

India’s active naval participation reflects its institutional commitment to ASEAN centrality and the practical operationalization of its Act East Policy and Indo-Pacific Oceans Initiative. By engaging in coordinated multilateral maneuvers in the South China Sea basin, New Delhi upholds the principle of unimpeded lawful commerce and freedom of navigation without endorsing unilateral maritime claims or unlawful territorial exclusions. The deployment also advances the vision of MAHASAGAR—Mutual and Holistic Advancement for Security and Growth Across Regions. For civil services and strategic studies candidates, this activity illustrates the practical functioning of minilateral maritime diplomacy, UNCLOS compliance monitoring, and India’s calibrated strategic posture within contested regional sea spaces.

Key Concepts & Self-Assessment20 Key Facts

Review key ADMM-Plus Maritime Activity: Indian Navy Drills & Subic Bay exam facts and rate your mastery to track revision.

Progress: 0/20 Rated 0 Mastered 0 Review Later
#1
The ADMM-Plus is an institutional defense platform comprising the 10 ASEAN member states and 8 dialogue partner nations.
#2
The 8 dialogue partners in ADMM-Plus are India, Japan, Australia, China, the United States, Russia, South Korea, and New Zealand.
#3
ADMM-Plus was formally established in 2010 in Hanoi, Vietnam, to bolster multilateral security cooperation across the Indo-Pacific.
#4
The 23rd Maritime Security Joint Cooperation Activity (JCA) took place at Subic Bay, Philippines, concluding on September 25, 2026.
#5
The 2026 activity was co-chaired by Japan and hosted by the Philippine Navy under the Experts' Working Group (EWG) on Maritime Security.
#6
The Indian Navy deployed stealth frigate INS Sahyadri and guided-missile corvette INS Kulish to participate in the exercises.
#7
INS Sahyadri is an indigenously built Project 17 Shivalik-class stealth frigate constructed at Mazagon Dock Shipbuilders in Mumbai.
#8
INS Kulish is a Kora-class missile corvette manufactured by Garden Reach Shipbuilders & Engineers, armed with surface-to-surface anti-ship missiles.
#9
Exercises adhered strictly to legal principles codified under the 1982 United Nations Convention on the Law of the Sea (UNCLOS).
#10
The Harbour Phase included Subject Matter Expert Exchanges on the ASEAN Navy Chiefs’ Meeting Guidelines for Maritime Interaction.
#11
Professional seminars addressed non-combatant evacuation, senior enlisted military leadership, and marine ecological disaster responses.
#12
The Sea Phase executed complex multinational Search and Rescue (SAR) tracking and distress assistance to vessels aground.
#13
Cross-deck helicopter landing qualifications and tactical communications drills verified direct real-time radio interoperability.
#14
Coordinated maritime domain awareness (MDA) drills utilized shared intelligence, surveillance, and reconnaissance (ISR) reporting.
#15
Hydrographic survey methodologies were exchanged to support safe maritime navigation through complex navigational straits.
#16
India’s participation affirms its diplomatic commitment to ASEAN centrality and the Prime Minister’s Act East Policy.
#17
The mission operationalized India’s MAHASAGAR framework: Mutual and Holistic Advancement for Security and Growth Across Regions.
#18
Operations occurred against geopolitical sensitivities in the South China Sea, reinforcing the demand for freedom of international navigation.
#19
Unlike military alliances, ADMM-Plus EWG activities focus on non-traditional maritime threats and cooperative confidence-building measures.
#20
The drills demonstrated the Indian Navy’s blue-water operational reach and expeditionary endurance thousands of nautical miles from home ports.

Subject Specialist Commentary

Analytical perspective & practical exam advice from the Master10 academic board

Educator's Insight
The ADMM-Plus maritime activity is a major military exercise linking Southeast Asian nations with partner powers like India and Japan. Think of it as a joint maritime training ground where navies practice search-and-rescue drills, helicopter deck landings, and ship communication at sea. By sending warships to Subic Bay in the Philippines, India proved its willingness to work alongside regional partners and maintain open, rule-based sea lanes across the Indo-Pacific.
In UPSC and international relations examinations, remember that ADMM-Plus includes exactly 18 countries: the 10 ASEAN nations plus 8 dialogue partners. Do not mistake ADMM-Plus for an anti-China military alliance like the Quad; it is an ASEAN-led cooperative security mechanism founded in 2010. Use the memory hook 'ASEAN PLUS 8 At Sea': Autonomous search and rescue, Lawful UNCLOS navigation, United disaster relief, and Shared maritime domain awareness.

Related Knowledge Topics to Discover

Looking for more GK practice?

Explore 52,789+ questions across 65 General Knowledge categories.

Open Interactive Search