Indian Ocean Geopolitics

Introduction

The Indian Ocean is one of the world’s most strategically important maritime regions. It connects Africa, the Middle East, South Asia, Southeast Asia and Australia and serves as a major route for international trade and energy transportation.

Indian Ocean geopolitics concerns the interaction of maritime geography, trade, energy, naval power, ports, strategic partnerships, economic connectivity and security.

The region includes major powers such as India and China as well as numerous coastal and island states. It also attracts the involvement of the United States, France, United Kingdom, Australia, Japan and European countries.

Strategic Geography of the Indian Ocean

The Indian Ocean connects several important geographical regions:

• East Africa
• Southern Africa
• Middle East
• South Asia
• Southeast Asia
• Australia

Its maritime routes connect the Atlantic and Pacific systems through surrounding seas and straits.

Major Chokepoints

Important maritime chokepoints affecting the Indian Ocean include:

Strait of Hormuz: Connects the Persian Gulf with the Gulf of Oman.

Bab el-Mandeb: Connects the Red Sea with the Gulf of Aden.

Strait of Malacca: Connects the Indian Ocean region with the South China Sea and Pacific.

Sunda Strait: Connects the Indian Ocean and Java Sea.

Lombok Strait: Provides an alternative route between the Indian Ocean and Pacific maritime system.

Sea Lines of Communication

Sea lines of communication (SLOCs) are maritime routes used for transporting goods, energy and military supplies.

The Indian Ocean is particularly important because large quantities of:

• oil
• gas
• manufactured goods
• raw materials
• food
• containers

move through its maritime routes.

Energy Security

The Indian Ocean connects major energy producers with major energy consumers.

Energy transported through the region originates from or passes through:

• Persian Gulf states
• Red Sea routes
• African producers
• Asian producers

Major Asian economies depend heavily on maritime energy imports.

Energy security therefore has a direct maritime dimension.

Naval Power

Sea power refers to a state’s ability to use maritime capabilities to pursue national objectives.

It can include:

• naval forces
• merchant shipping
• ports
• maritime industries
• naval bases
• logistics
• maritime technology

The Indian Ocean is therefore an important arena for naval competition and cooperation.

India and the Indian Ocean

India occupies a central geographical position in the Indian Ocean.

India’s strategic interests include:

• maritime security
• protection of trade routes
• energy security
• coastal security
• naval modernization
• island-state partnerships
• maritime domain awareness

India describes the Indian Ocean as an important component of its security and foreign-policy environment.

China and the Indian Ocean

China’s interests in the Indian Ocean have expanded alongside its economic relationships with regional states.

These interests include:

• trade
• energy security
• shipping
• port access
• infrastructure
• protection of overseas economic interests

China’s participation in Indian Ocean affairs is therefore both economic and strategic.

Maritime Infrastructure

Ports are central to Indian Ocean geopolitics.

Major ports and maritime hubs include:

• Gwadar
• Karachi
• Chabahar
• Colombo
• Hambantota
• Port Sudan
• Djibouti
• Mombasa
• Dar es Salaam
• Duqm

Port geopolitics refers to the strategic importance of ports in trade, connectivity, logistics and security.

Gwadar

Gwadar is important to Pakistan’s maritime strategy and to CPEC.

Its location near the approaches to the Persian Gulf gives it potential significance for:

• trade
• logistics
• regional connectivity
• energy transportation

Its development is also linked with China’s wider Belt and Road connectivity framework.

Chabahar

Chabahar Port is located in Iran near the Gulf of Oman.

India has invested in cooperation concerning Chabahar because the port provides a potential route linking India with Afghanistan and Central Asia while reducing dependence on routes through Pakistan.

Chabahar therefore illustrates the interaction between:

• port diplomacy
• regional connectivity
• strategic competition
• access to landlocked markets

Djibouti

Djibouti occupies a strategically important location near the Bab el-Mandeb.

Its geographical position has attracted multiple foreign military and logistical facilities.

This illustrates the importance of strategic basing in maritime geopolitics.

Maritime Security

Indian Ocean maritime security concerns include:

• piracy
• terrorism
• smuggling
• trafficking
• illegal fishing
• maritime disputes
• armed robbery
• cyber threats
• attacks on commercial shipping

Maritime security is therefore broader than conventional naval warfare.

Maritime Safety

Maritime safety concerns the prevention of accidents and protection of life and vessels at sea.

It includes:

• search and rescue
• navigation safety
• vessel standards
• emergency response
• disaster preparedness

Maritime safety and maritime security are related but distinct concepts.

Maritime Domain Awareness

Maritime Domain Awareness (MDA) refers to the ability to monitor and understand activities occurring at sea.

It can involve:

• satellites
• radar
• coastal sensors
• automatic identification systems
• aircraft
• information-sharing networks

MDA enables states to identify suspicious activity and improve maritime security.

Indian Ocean Rim Association

Indian Ocean Rim Association (IORA) is a regional organization promoting cooperation among Indian Ocean states.

IORA’s cooperation areas include:

• maritime safety and security
• trade and investment
• fisheries
• disaster risk management
• academic and scientific cooperation
• tourism and cultural exchanges
• blue economy
• women’s economic empowerment

IORA’s maritime safety and security agenda remained active in 2026, including a working-group meeting involving member states and dialogue partners.

Blue Economy

Blue economy refers to sustainable economic activity associated with oceans and marine resources.

It can include:

• fisheries
• shipping
• tourism
• offshore energy
• marine biotechnology
• port development
• aquaculture

The concept is particularly important to developing island and coastal states.

Fisheries and Illegal Fishing

Illegal, unreported and unregulated (IUU) fishing is a major maritime governance issue.

It can affect:

• food security
• coastal livelihoods
• marine ecosystems
• national revenues
• regional relations

Indian Ocean regional institutions increasingly address fisheries as part of broader maritime governance.

Disaster Risk Management

Indian Ocean states face:

• cyclones
• tsunamis
• floods
• coastal erosion
• sea-level rise
• earthquakes

Disaster risk management involves preparing for, reducing and responding to disaster risks.

Regional cooperation is important because maritime disasters can affect multiple countries simultaneously.

Climate Change

Climate change creates major challenges for Indian Ocean states, particularly low-lying island countries.

Important concerns include:

• sea-level rise
• coral reef degradation
• coastal erosion
• changing fisheries
• extreme weather
• freshwater stress

Indian Ocean and Great-Power Competition

The Indian Ocean is increasingly affected by competition involving:

• India
• China
• United States
• Australia
• France
• United Kingdom
• Japan

However, regional states are not simply passive participants. They pursue their own interests through partnerships, balancing and multi-alignment.

Small States and Island Diplomacy

Small island states such as:

• Maldives
• Mauritius
• Seychelles
• Comoros

possess strategic significance despite relatively small populations and economies.

Their location can give them importance for:

• maritime surveillance
• ports
• logistics
• fisheries
• climate diplomacy
• regional security

Island diplomacy refers to the use of diplomatic, economic and strategic relationships by island states to advance national interests.

Indian Ocean and Pakistan

Pakistan has an important position on the northern Arabian Sea.

Its maritime interests include:

• Karachi Port
• Port Qasim
• Gwadar
• Arabian Sea security
• energy imports
• maritime trade
• CPEC connectivity

Pakistan’s maritime geography links South Asia with the Middle East and wider Indian Ocean trade routes.

Strategic Autonomy and Multi-Alignment

Indian Ocean states often avoid exclusive alignment with a single major power.

Multi-alignment refers to maintaining relationships with multiple major powers simultaneously.

This approach allows states to obtain:

• investment
• security cooperation
• technology
• trade opportunities
• diplomatic support

while preserving room for independent policy choices.

Key Distinctions

Maritime safety vs maritime security: Safety focuses mainly on accidents and hazards; security focuses on deliberate threats and hostile activities.

Sea power vs naval power: Naval power is primarily military. Sea power is broader and can include commercial shipping, ports, maritime industries and naval capabilities.

Port diplomacy vs naval basing: Port diplomacy involves economic and diplomatic relationships surrounding ports, while naval basing involves military facilities and operational access.

Indian Ocean vs Indo-Pacific: The Indian Ocean is a geographical maritime region. The Indo-Pacific is a broader geopolitical concept connecting the Indian and Pacific Oceans.

Blue economy vs maritime economy: The blue economy emphasizes sustainable economic use of marine resources, while maritime economy can encompass the broader economic activity associated with the sea.

Key Terms at a Glance

• Indian Ocean
• Indian Ocean Region
• Indian Ocean geopolitics
• Sea power
• Naval power
• Sea lines of communication
• Maritime chokepoint
• Maritime security
• Maritime safety
• Maritime Domain Awareness
• Port diplomacy
• Strategic basing
• Gwadar
• Chabahar
• Djibouti
• IORA
• Blue economy
• IUU fishing
• Island diplomacy
• Multi-alignment
• Energy security

Related Glossaries

• 3.1 Power in International Relations
• 3.2 Hard Power, Soft Power and Smart Power
• 5.4 Public, Economic and Digital Diplomacy
• 8.6 Global Supply Chains and Economic Interdependence
• 9.1 International and National Security
• 9.2 Human Security and Non-Traditional Security
• 12.2 Geostrategy and Strategic Geography
• 12.3 Land Power, Sea Power and Air Power
• 12.4 Chokepoints, Corridors and Strategic Locations
• 12.5 Resources, Energy and Geoeconomics
• 13.6 QUAD, AUKUS and Other Strategic Groupings
• 15.5 China-Pakistan Relations and CPEC
• 15.7 Indo-Pacific Strategy and Rivalries
• 18.5 Water Security and Transboundary Waters

Conclusion

Indian Ocean geopolitics combines geography, maritime trade, energy security, naval power, ports, regional institutions, environmental challenges and great-power competition.

For South Asian and international-relations studies, the Indian Ocean is particularly important because it connects Pakistan and India with the Middle East, Africa, Southeast Asia and the wider Indo-Pacific. Its future strategic environment will depend not only on major-power rivalry but also on the choices and interests of the many coastal and island states surrounding the ocean.