Hampton Roads
Beginning in 1917, as the United States became involved in World War I under President Woodrow Wilson, formerly rural Sewell's Point became the site of what grew to become the largest Naval Base in the world which was established by the United States Navy and is now known as the Naval Station Norfolk.
Guantanamo Bay Naval Base
U.S. and Cuban troops placed some 55,000 land mines across the "no man's land" around the perimeter of the naval base creating the second-largest minefield in the world, and the largest in the Western Hemisphere. On 16 May 1996, U.S. President Bill Clinton ordered the demining of the American field. They have since been replaced with motion and sound sensors to detect intruders on the base. The Cuban government has not removed its corresponding minefield outside the perimeter.