In military communication, what does "Link-16" provide?

Link-16 is a tactical data link communication system that provides real-time data exchange among military units. It is used predominantly by NATO forces and enables various platforms such as aircraft, ships, and ground units to share situational awareness and tactical information in a secure and timely manner. This capability allows for coordinated operations, enhances battlefield communication, and improves overall mission effectiveness by ensuring that all participating units have access to the same information.

The other options do not accurately describe the primary function of Link-16. While it does support secure communications and can incorporate elements of encryption, its foremost feature is the rapid and efficient sharing of real-time data, making option B the most appropriate choice.