The Underground Great Wall of China is a vast network of tunnels spanning approximately 5,000 kilometers (3,000 miles) across China. This extensive underground system serves as a strategic infrastructure for storing and transporting intercontinental ballistic missiles (ICBMs). The network represents a significant component of China's military capabilities and strategic defense planning.
The tunnel system, while not as visible as the ancient Great Wall, plays a crucial role in China's modern military infrastructure. Its construction and maintenance reflect the country's focus on developing secure and protected facilities for its strategic weapons systems. The exact locations and full extent of the network remain largely classified for security reasons.