The Eastern Gulf Test and Training Range (aka Eglin Gulf Test and Training Range, EGTTR) is the largest military test and training range in the continental United States.
The EGTTR connects test & training capabilities across the eastern Gulf of Mexico extending from Key West to Northwest Florida with 180,000 square miles of DoD-controlled air space and 17 miles of shoreline access and interconnected radars. It is managed by Eglin AFB to support the research, development, test, and evaluation of conventional weapons and electronic systems. The EGTTR supports multiple users, including DoD, other government agencies, foreign countries, and private companies.