Introduction
JIMEX (Japan–India Maritime Exercise) is a bilateral naval exercise conducted between the Indian Navy and the Japan Maritime Self-Defense Force (JMSDF). It aims to enhance maritime interoperability, strengthen naval cooperation and improve coordination in ensuring a free, open and rules-based Indo-Pacific.
The exercise is conducted periodically in India, Japan or the Indian Ocean region.
Background
- The first edition of JIMEX was held in 2012 off the coast of Japan.
- It forms an important pillar of the India–Japan Special Strategic and Global Partnership.
- The exercise complements other bilateral defence engagements such as Dharma Guardian, Veer Guardian, the 2+2 Ministerial Dialogue and the Defence Policy Dialogue.
Objectives
- Enhance interoperability between the two navies.
- Promote maritime security cooperation.
- Improve coordination in complex naval operations.
- Strengthen maritime domain awareness.
- Safeguard freedom of navigation and secure Sea Lines of Communication (SLOCs).
Key Features
- Bilateral naval exercise between the Indian Navy and the Japan Maritime Self-Defense Force (JMSDF).
- Conducted in two phases:
- Harbour Phase – Professional exchanges, planning conferences, sports and cultural interactions.
- Sea Phase – Advanced naval operations and tactical exercises.
- Involves frontline warships, submarines, maritime patrol aircraft and helicopters.
Major Areas of Training
- Anti-submarine warfare (ASW).
- Anti-air warfare (AAW).
- Surface warfare.
- Maritime interdiction operations.
- Cross-deck helicopter operations.
- Replenishment at sea.
- Air defence drills.
- Maritime surveillance and reconnaissance.
- Communication and tactical manoeuvres.
- Search and Rescue (SAR).
Significance
Strengthening Maritime Security
Enhances cooperation to address piracy, terrorism, illegal trafficking and other non-traditional maritime threats.
Indo-Pacific Cooperation
Supports the shared vision of a Free, Open and Inclusive Indo-Pacific based on international law, freedom of navigation and peaceful resolution of disputes.
Naval Interoperability
Improves operational compatibility, communication systems and joint operational capability between the two navies.
Strategic Deterrence
Strengthens the maritime partnership amid increasing strategic competition in the Indo-Pacific.
Complementing the Quad
JIMEX complements broader maritime cooperation among the Quad countries—India, Japan, Australia and the United States—while remaining a bilateral exercise.
Way Forward
- Increase the frequency and complexity of naval exercises.
- Expand cooperation in underwater domain awareness and unmanned maritime systems.
- Strengthen collaboration in cybersecurity and maritime intelligence.
- Promote defence industrial cooperation and naval technology partnerships.
- Enhance coordination in Humanitarian Assistance and Disaster Relief (HADR) operations.
Conclusion
JIMEX has emerged as a key pillar of India–Japan naval cooperation. By enhancing interoperability, maritime security and operational coordination, it strengthens the India–Japan Special Strategic and Global Partnership and contributes to peace, stability and a rules-based order in the Indo-Pacific.
