The largest military base in the world is located in the United States, specifically in Fort Bragg, North Carolina. Fort Bragg covers a total area of approximately 500 square miles (1,295 square kilometers) and is home to over 50,000 active-duty personnel, as well as their families and support staff.

Fort Bragg was established in 1918, during World War I, and has since grown to become one of the most important military installations in the world. The base serves as the headquarters for the U.S. Army’s XVIII Airborne Corps and is home to several major units, including the 82nd Airborne Division, the U.S. Army Special Operations Command, and the U.S. Army Forces Command.
The base also serves as a major training center for the U.S. military, with facilities that can simulate a variety of combat environments and scenarios. Soldiers at Fort Bragg receive specialized training in areas such as airborne operations, special forces operations, and urban warfare.
In addition to its military functions, Fort Bragg also provides support and services to military families, including housing, medical care, and education. The base is home to several schools, including a high school, middle school, and elementary school, as well as a variety of recreational facilities, such as golf courses, fitness centers, and swimming pools.
Fort Bragg is just one of several major military bases located in the United States. Other large military bases in the U.S. include Fort Hood in Texas, which covers over 340 square miles (880 square kilometers) and is home to over 45,000 active-duty personnel, and Joint Base Lewis-McChord in Washington State, which covers over 414 square miles (1,071 square kilometers) and is home to over 40,000 active-duty personnel.
Outside of the United States, there are several other large military bases that are important to global security. One of the largest is Camp Bastion in Afghanistan, which covers over 50 square miles (130 square kilometers) and is home to several thousand U.S. and British troops. The base has played a key role in the fight against terrorism in the region, serving as a major hub for logistics and support operations.
Another important military base is Diego Garcia, which is located in the Indian Ocean and is home to several thousand U.S. and British troops. The base serves as a major logistics and support center for military operations in the Middle East and is strategically important due to its location near major shipping lanes.
In conclusion, the largest military base in the world is Fort Bragg in North Carolina, which covers approximately 500 square miles (1,295 square kilometers) and is home to over 50,000 active-duty personnel. The base serves as a major training center for the U.S. military and is home to several major units, including the 82nd Airborne Division and the U.S. Army Special Operations Command. While there are several other large military bases located throughout the world, Fort Bragg remains one of the most important due to its strategic location and the variety of functions it serves.