Canals, specifically the Suez and Panama Canals, fundamentally altered the geography of global trade by creating maritime shortcuts that saved thousands of miles and weeks of travel time. Before the Panama Canal opened in 1914, ships traveling between the US East and West Coasts had to navigate the treacherous Cape Horn at the tip of South America. The canal reduced this trip from 13,000 miles to just 5,000 miles. This dramatic reduction in distance led to a "globalization" of commerce, lowering the cost of goods by reducing fuel consumption and labor time. Canals also spurred the development of specialized "Panamax" ship designs, which maximized the physical limits of the locks. Beyond economics, canals provided a strategic military advantage, allowing navies to deploy fleets between oceans rapidly. In a modern context, canals are the "chokepoints" of the global economy; even a temporary blockage, like the 2021 Suez Canal incident, can cause a ripple effect that disrupts supply chains worldwide, proving that these artificial waterways remain the most vital arteries of international logistics and resource distribution.