The Joint Simulation Environment is a joint effort of the United States Air Force and Navy to produce flight simulators that can provide the most realistic combat training possible for air crew, as well as to perform operational testing and to develop tactics.
The first JSE installation opened at Naval Air Station Patuxent River in Maryland in 2023; its second and third locations opened the following year at Edwards Air Force Base in California and Nellis AFB in Nevada. A fourth JSE installation is to open at Naval Air Station Fallon in Nevada in 2025, while a fifth is planned for Joint Base Elmendorf-Richardson in Alaska. A smaller shipboard version is aboard the aircraft carrier Abraham Lincoln.