What USJFCOM Does

What is USJFCOM?

Force Provider

Joint Trainer

Joint Capability Development

Joint Enabling Capabilities

Joint Concept Development and Experimentation

Reserve & Command Support

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Modeling and Simulation

Joint Conflict and Tactical Simulation (JCATS)

Joint Theater Level Simulations (JTLS)

Joint Multi-Resolution Model (JMRM)

Joint Training

Recent USJFCOM News

Newsmaker Profile: Navy Rear Adm. Michael H. Mittelman Navy Rear Adm. Michael H. Mittelman recently earned his second star, becoming only the second member of the Medical Service Corps to achieve the rank.  Before moving on to his next assignment, he sat down to talk about his time at USJFCOM. • Comment on this article at USJFCOMLive

Joint Semi-Automated Forces (JSAF)

Joint Semi-Automated Forces (JSAF) is a simulation system sponsored by U.S. Joint Forces Command (USJFCOM).

The system generates entity-level simulations which interact individually in a synthetic environment. Individual entities include infantrymen, tanks, ships, airplanes, munitions, buildings, and sensors. They can be controlled separately or organized into appropriate units for a given mission.

USJFCOM uses JSAF for human-in-the-loop, virtual experiments which routinely run more than 100,000 entities at a time.

The U.S. Navy's Maritime Battle Center also uses JSAF as the core simulation for its fleet battle experiments and as a component of the Joint National Training Center.

JSAF evolved from the Defense Advanced Research Projects Agency's Synthetic Theater of War Advanced Concept Technology Demonstration, which aimed to develop and integrate the technologies necessary to demonstrate entity- or platform-level simulation in support of joint command and staff training and mission rehearsals.

JSAF’s synthetic environment represents real-world terrain, oceans, and weather conditions that affect the behaviors and capabilities of the simulated forces. The behaviors of the JSAF entities are affected by line of sight, time of day, currents, tides, slope, smoke, soil conditions, water depth, and cloud cover.

JSAF draws a large-scale, worldwide terrain database to generate high-fidelity simulations of many environments, including the detailed of urban terrain.

The system also simulates detailed civilian behavior - critical in representing urban environments.

Simulation can be run locally or distributed on a wide-area network. JSAF supports multiple federations, or collections of simulation components that work together to represent the joint battlespace.