7. English Channel
The English Channel is a narrow body of water separating England from continental Europe, connecting the North Sea to the Atlantic Ocean. Spanning approximately 560 kilometers (350 miles) in length and varying in width from 33.8 kilometers (21 miles) at the Strait of Dover to 240 kilometers (150 miles) at the Cotentin Peninsula, it has been a significant maritime route and a natural barrier against invasions. Throughout history, the Channel has been pivotal in military strategy, from the Spanish Armada’s attempted invasion in 1588 to the Allied landings in Normandy during World War II. Its control has influenced the outcomes of numerous conflicts, underscoring its strategic importance. (britannica.com)
