Island Security Geography

India’s island territories, spanning the Bay of Bengal and the Arabian Sea, form critical frontiers for the nation’s maritime security architecture. Geographically detached from the mainland, these archipelagos extend India’s strategic reach, establish expansive maritime zones, and act as frontline observation posts against non-traditional and state-sponsored security threats.

Spatial and Geopolitical Matrix of India’s Island Ecosystems

India possesses two primary island groups located on geographically opposing sides of the subcontinent, each presenting distinct strategic dynamics and vulnerabilities.

Andaman and Nicobar Islands (Bay of Bengal)

• Geographical Extension: An archipelago of 572 islands (38 permanently inhabited) stretching over 800 km from north to south. It represents the subaerial extension of the tertiary fold mountains of the Arakan Yoma (Myanmar).
• Strategic Proximity: The northernmost point (Landfall Island) is just 40 km from Myanmar’s Coco Islands, while the southernmost point (Indira Point on Great Nicobar) is only 145 km from Sumatra, Indonesia.
• Chokepoint Governance: The archipelago sits astride the western entrance of the Strait of Malacca, a critical global maritime chokepoint through which over 60,000 commercial vessels pass annually.

Lakshadweep Islands (Arabian Sea)

• Geographical Extension: A cluster of 36 coral islands (10 inhabited) of atoll origin, resting atop the Chagos-Laccadive submarine ridge.
• Strategic Proximity: Situated 200 to 440 km off the coast of Kerala, these islands lie in close proximity to international sea lanes connecting the Persian Gulf and Red Sea with East Asia.

Maritime Boundaries and Sovereign Extensions

Strategic Imperatives: Islands as “Unsinkable Aircraft Carriers”

The geographic positioning of India’s islands transforms them from isolated outposts into highly potent strategic assets, offering profound advantages in Maritime Domain Awareness (MDA) and power projection.

Expansion of the Exclusive Economic Zone (EEZ)

The baseline measurements surrounding the Andaman, Nicobar, and Lakshadweep archipelagos contribute nearly 30% of India’s total 2.37 million square kilometer EEZ. This grants exclusive sovereign rights over significant living and non-living marine resources, including deep-sea polymetallic nodules and hydrocarbons.

Countering the “String of Pearls” and Maritime Encirclement

The Andaman and Nicobar Islands provide a forward defense base to monitor foreign naval movements, particularly Chinese People’s Liberation Army Navy (PLAN) submarines and surface warships entering the Indian Ocean Region (IOR). They serve to neutralize the operational access points developed by external powers in the Bay of Bengal and Myanmar coast.

Net Security Provider in the IOR

The islands act as logistics and operational hubs for Humanitarian Assistance and Disaster Relief (HADR) missions, Anti-Piracy patrols, and Search and Rescue (SAR) operations along major International Shipping Lanes (ISLs).

Vulnerabilities and Security Challenges

Despite their strategic advantages, the geographical characteristics of these island ecosystems introduce distinct security vulnerabilities.

Asymmetric and Non-Traditional Security Threats

• Poaching and IUU Fishing: The vast, unpopulated islands of the Andaman and Nicobar group are highly susceptible to Illegal, Unreported, and Unregulated (IUU) fishing by foreign trawlers targeting sea cucumbers, rare corals, and marine resources.
• Narco-Terrorism and Smuggling: The Lakshadweep islands, due to their proximity to the “Golden Crescent” shipping routes, face risks from maritime drug trafficking syndicates and arms smuggling networks operating via localized dhows and fishing vessels.
• Illegal Migration and Infiltration: Porous maritime borders near Myanmar, Bangladesh, and Sri Lanka expose the island groups to unauthorized migration patterns, which complicate local demographic matrices and internal security.

Infrastructural and Logistical Challenges

• Extreme Isolation: The vast physical distance from the Indian mainland complicates rapid military reinforcement and continuous logistical supply lines during crises.
• Communication Vulnerabilities: Historically dependent on satellite links, these islands required robust infrastructural upgrades to prevent communication blackout vulnerabilities during electronic warfare scenarios.

Ecological and Anthropogenic Constraints

• Fragile Ecosystems: Being highly prone to seismic activity (the Andaman and Nicobar chain lies near a major subduction zone) and rising sea levels, military infrastructure development must be strictly balanced against ecological conservation.
• Tribal Protection: Large parts of the Andaman and Nicobar Islands are designated as tribal reserves (e.g., Jarawas, Sentinelese). Security operations must ensure zero-contact protocols to preserve these vulnerable indigenous populations.

Institutional Framework and Defense Architecture

India has updated its defense layout to transition from a defensive posture to an active deterrence framework on its islands.

The Andaman and Nicobar Command (ANC)

Established in 2001 at Port Blair, the ANC is India’s first and only operational Tri-Services Theater Command. It places elements of the Indian Army, Navy, Air Force, and Coast Guard under a unified commander, drastically reducing response times and eliminating inter-service bureaucratic delays.

Infrastructure Upgrades and Forward Bases

• Airfield Elongation: Naval Air Stations like INS Baaz at Campbell Bay (Great Nicobar) and INS Kohassa (Shibpur) have seen runway extensions to facilitate the operations of heavy maritime patrol aircraft like the P-8I Neptune and fighter jets.
• Lakshadweep Operational Bases: INS Dweeprakshak at Kavaratti and the commissioned detachment INS Jatayu at Minicoy Island strengthen the Indian Navy’s footprint close to the Nine Degree Channel, optimizing surveillance over the western Arabian Sea.
• Submarine Optical Fiber Cable (OFC): The commissioning of Chennai-Andaman and Nicobar Islands (CANI) and the Kochi-Lakshadweep Islands (KLI) submarine cable networks ensures secure, high-speed data connectivity, augmenting real-time military data sharing.

Comprehensive Island Development Plans

The Island Development Agency (IDA), chaired by the Union Home Minister, oversees the holistic development of the islands. It bridges the gap between infrastructure execution (e.g., the Great Nicobar Transshipment Port Project) and environmental-security preservation.

Fact File for Prelims

• Indira Point: Located on Great Nicobar Island at 6° 45′ N latitude, this is the southernmost point of Indian territory. It was partially submerged during the 2004 Indian Ocean Tsunami.
• Barren Island and Narcondam Island: Located in the Andaman Sea, Barren Island is home to India’s only active volcano, while Narcondam is an extinct volcanic island. Both serve as critical geographic markers for territorial sea baselines.
• Duncan Passage: A strategic strait located between South Andaman and Little Andaman islands, regulating domestic maritime movement within the archipelago.
• Coco Islands Dispute: Geographically contiguous to the Andaman chain but under Myanmar’s sovereignty, these islands are continuously monitored by Indian intelligence due to allegations of foreign maritime surveillance installations.
• Co-lateral Maritime Exercises: The Indian Navy regularly conducts CORPAT (Coordinated Patrol) with navies of Thailand, Indonesia, and Myanmar around the Andaman Sea to maintain maritime order and counter low-intensity maritime crimes.