A Tactical Data Link (TDL) is a communication system that allows military units to share real-time information about their operations. It enables different platforms, such as aircraft, ships, and ground forces, to exchange data like location, status, and targeting information. This enhances situational awareness and coordination among various forces during missions. TDLs are crucial for modern warfare, as they support joint operations and improve decision-making. They often use secure, high-speed data transmission methods to ensure that sensitive information remains protected. Examples of TDLs include Link 16 and Link 11, which are widely used by NATO and allied forces.