Curriculum 2026–27
Practice
World Geography Module

Major Straits, Canals & Maritime Chokepoints

Maritime straits and artificial ship canals serve as vital navigational corridors and geopolitical chokepoints in global maritime commerce and energy transportation. Key natural straits include the Strait of Malacca (connecting the Indian Ocean with the South China Sea, handling over 25 percent of global seaborne trade), the Strait of Hormuz (connecting the Persian Gulf to the Gulf of Oman, carrying one-fifth of global petroleum supply), the Strait of Gibraltar (linking the Atlantic Ocean to the Mediterranean Sea), and the Bab-el-Mandeb (connecting the Red Sea to the Gulf of Aden). Artificial shipping canals—notably the Suez Canal in Egypt (opened in 1869) and the Panama Canal (opened in 1914)—have drastically shortened transoceanic commercial shipping distances.

Key Concepts & Examination Highlights

  • The Strait of Hormuz is the world's most critical oil transit chokepoint, facilitating the passage of roughly 21 million barrels of petroleum per day.
  • The Strait of Malacca, situated between the Malay Peninsula and Sumatra, is the primary shipping channel connecting the Indian and Pacific Oceans.
  • The Suez Canal, constructed under Ferdinand de Lesseps and opened in November 1869, connects the Mediterranean Sea to the Red Sea.
  • The Panama Canal, opened in August 1914, uses a lock system to lift ships 26 meters above sea level to cross the Isthmus of Panama between the Atlantic and Pacific.
Curriculum & Reference Sources: US Energy Information Administration (EIA) Chokepoints Report, International Maritime Organization (IMO), National Geospatial-Intelligence Agency.