TADIL-J refers to the system of standardized J-series messages which are known by NATO as Link 16.
It is used by the U.S. Navy, U.S. Army, U.S. Marine Corps, U.S. Air Force, U.S. Coast Guard, the NSA, several NATO countries, and Japan as part of the Multi-Tactical Data Link Network, a Tactical Data Link.
TADIL J was designed as an improved data link used to exchange near real-time (NRT) information.
TDMA eliminates the requirement for a net control station (NCS) by providing a nodeless communications network architecture.
J-series messages can also be exchanged over IP-based bearers using the NATO-defined SIMPLE protocol, JREAP and via satellite by S-TADIL J. TADIL is no longer an official US Department of Defense term (per DISA guidance).