The Strategic Importance of the Bab el-Mandeb Strait

The Strategic Importance of the Bab el-Mandeb Strait

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Why in News

  • Yemen's Houthi rebels announced a targeted naval embargo on Saudi Arabia in the Bab el-Mandeb Strait, threatening to block oil tankers moving through the Red Sea.

Overview of the Strait

  • The Bab el-Mandeb Strait means Gate of Tears in Arabic. It is a narrow maritime passage connecting the Red Sea to the Gulf of Aden and the Indian Ocean.
  • It acts as the southern entry point to the Suez Canal and forms part of the shortest shipping route connecting Europe, North Africa, and Asia.

Location and Bordering Nations

  • Located between the Arabian Peninsula and the Horn of Africa, the strait borders three countries: Yemen, Djibouti, and Eritrea.

Key Geographical and Hydrographic Features

  • At its narrowest point between Ras Menheli in Yemen and Ras Siyyan in Djibouti, the strait spans approximately 32 km (20 miles).
  • Volcanic Perim (Mayun) Island divides the passage into two separate navigation channels.
  • The Western Channel, known as Dact-el-Mayun, is 26 km (16 miles) wide and around 200 meters (650 feet) deep, serving as the main route for international shipping.
  • The Eastern Channel, known as Bab Iskender, is 3 km (2 miles) wide with a shallow depth of 30 meters (100 feet), limiting its use to local small vessels.
  • Driven by monsoon winds, seasonal water currents reverse direction here, making it the primary water exchange corridor between the Red Sea and the Gulf of Aden.
  • The region features several volcanic islands, including the Seven Brothers (Sawabi Islands) located near the coast of Djibouti.

Strategic Significance

  • This channel carries 10-12% of global seaborne trade and nearly 10% of global seaborne oil trade, making it the third busiest energy chokepoint after Malacca and Hormuz.
  • Closing this route forces vessels to detour around the Cape of Good Hope, adding 3,500-4,000 nautical miles and 10-14 days to journeys while driving up fuel, insurance, and freight costs.