The 84th Test and Evaluation Squadron (84th TES) is a unit of the United States Air Force (USAF) responsible for testing and evaluating weapons systems, platforms, and combat support systems to ensure their readiness for operational use. Based at Eglin Air Force Base in Florida, the 84th TES supports various military branches, including the USAF, Army, Navy, Marine Corps, and allied nations. The squadron's primary role is to assess the effectiveness, suitability, and interoperability of new and existing systems during developmental testing, operational testing, and system evaluation. By providing critical feedback to weapon system developers, the 84th TES plays a crucial part in maintaining the technological edge of the U.S. military.