For Great Britain, the Suez Canal wasn't just a shortcut—it was a strategic artery. Opened in 1869, it slashed the sea route to India (the "jewel in the crown") by ~4,500 miles, avoiding the Cape of Good Hope.
Britain secured control through:
The canal moved troops, mail, tea, cotton, and oil. Losing it meant imperial decline. That's why Britain fought to keep it—through two world wars and the 1956 Suez Crisis—until Egyptian nationalization and shifting geopolitics ended its grip.