Important Naval Bases, Ports and Chokepoints — Strategic Significance

Maritime chokepoints are narrow passages along high-traffic sea routes that channel global shipping trade. Disruptions at these geographical bottlenecks immediately affect global energy security, supply chains, and international maritime security. Surrounding these corridors, major naval bases and commercial ports act as strategic outposts for power projection, anti-piracy operations, and trade management. Understanding these critical geographical features is essential for evaluating global trade vulnerabilities and geopolitical dynamics.

Critical Global Maritime Chokepoints

Strait of Hormuz

• Geography: Connects the Persian Gulf with the Gulf of Oman and the Arabian Sea. It separates Iran to the north from Oman and the United Arab Emirates to the south.
• Width: Measures 21 nautical miles (approx. 39 km) at its narrowest point. Shipping lanes in both directions are only two miles wide, separated by a two-mile buffer zone.
• Strategic Value: Handles roughly 20% to 30% of the world’s total petroleum liquids and liquefied natural gas (LNG) supplies, particularly from Saudi Arabia, Iraq, UAE, Kuwait, and Qatar.

Bab-el-Mandeb Strait

• Geography: Links the Red Sea to the Gulf of Aden and the Indian Ocean. It lies between Yemen on the Arabian Peninsula and Djibouti and Eritrea in the Horn of Africa.
• Island Split: Perim Island divides the strait into two channels. The eastern channel (Bab Iskender) is 3 km wide, while the western channel (Dact-el-Mayun) is 25 km wide and holds the main shipping route.
• Strategic Value: Serves as the southern gateway to the Suez Canal. Disruption here forces ships to bypass the Red Sea and sail around the Cape of Good Hope, adding thousands of nautical miles to Europe-Asia trade routes.

Suez Canal

• Geography: Artificial sea-level waterway in Egypt connecting the Mediterranean Sea to the Red Sea across the Isthmus of Suez.
• Length: Spans approximately 193 km from Port Said in the north to Port Tewfik (Suez) in the south.
• Strategic Value: Handles around 12% of global trade and 10% of global seaborne oil. It eliminates the need for ships to navigate around Africa, reducing transit time between Europe and Asia by 10 to 15 days.

Strait of Malacca

• Geography: Funnel-shaped waterway connecting the Indian Ocean (Andaman Sea) with the Pacific Ocean (South China Sea), bounded by Peninsular Malaysia, Sumatra (Indonesia), and Singapore.
• Strategic Value: Functions as the primary sea lane for Asian energy imports, carrying over one-third of global maritime trade and oil shipments destined for China, Japan, and South Korea.

Overview of Key Global Chokepoints

Strategic Ports and Overseas Naval Bases

Major naval installations and deep-water ports around these chokepoints allow nations to secure supply routes, maintain maritime domain awareness, and combat piracy.

Key Naval Bases and Outposts

• Djibouti (Horn of Africa): Hosts foreign naval facilities due to its position near the Bab-el-Mandeb. Countries operating bases in Djibouti include China (Doraleh), the United States (Camp Lemonnier), France, and Japan.
• Duqm Port (Oman): Situated outside the Strait of Hormuz on the Arabian Sea. Grants strategic logistics access to the Indian Navy and foreign fleets, allowing ships to bypass the Hormuz bottleneck.
• Chabahar Port (Iran): Located on the Gulf of Oman. Operated in part by India (Shahid Beheshti Terminal) to provide land access to Afghanistan and Central Asia bypassing Pakistan.
• Gwadar Port (Pakistan): Located on the Arabian Sea near the Gulf of Oman. Serves as the southern terminus of the China-Pakistan Economic Corridor (CPEC).
• INS Baaz (Campbell Bay): India’s southernmost naval air station located at Great Nicobar Island, monitoring the entrance to the Strait of Malacca.

Key Facts for Quick Revision

• Narrowest Passage of Hormuz: Shipping channels inside the Strait of Hormuz are only two miles wide in each direction.
• Suez Canal Construction: Opened in November 1869; nationalized by Egyptian President Gamal Abdel Nasser in July 1956.
• Djibouti Base Concentration: The only country in the world hosting operational military bases of both the US and China simultaneously.
• Perim Island Position: Divides the Bab-el-Mandeb Strait into two navigable channels.
• Great Nicobar Strategic Value: Home to India’s INS Baaz, directly monitoring traffic entering the Six Degree Channel toward the Strait of Malacca.
• Ever Given Incident: A March 2021 container ship grounding in the Suez Canal blocked global trade for six days, stranding hundreds of vessels.
• Alternative Route Penalty: Re-routing cargo around the Cape of Good Hope adds roughly 3,500 to 4,000 nautical miles and 10 to 14 days to Europe-Asia voyages.