A new interactive map details the world's most critical maritime chokepoints where shipping disruptions could devastate global trade. These strategic waterways range from primary chokepoints with no alternatives to secondary passages that offer bypass routes but still create major supply chain risks. The analysis categorizes each chokepoint by its vulnerability and economic impact.

The Strait of Hormuz emerges as the highest-consequence bottleneck, with no maritime bypass and ~20 million barrels of oil transiting daily. Iran's control of the northern coast gives it the ability to threaten closure through mines and missiles. The Suez Canal carries ~12% of global trade, with the 2021 Ever Given blockage costing an estimated $9.6 billion per day. When Bab el-Mandeb is blocked, ships must reroute around Africa regardless.

Secondary chokepoints like the Taiwan Strait and Strait of Malacca carry roughly 20% of global maritime trade by value, including critical semiconductor supply chains. The Panama Canal faces unique climate vulnerability, with a 2023-24 drought forcing ~40% transit reductions. Turkey's control over the Bosphorus and Dardanelles under the 1936 Montreux Convention makes it a pivotal gatekeeper between the Black Sea and Mediterranean.