The Multinational Aircrew Electronic Warfare Tactics Facility Polygone - POLYGON is an Electronic Warfare Tactics Range located on the border between Germany

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 and France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

.
The range, also referred to as the Multi-national Aircrew Electronic Warfare Tactics Facility (MAEWTF), is jointly operated by personnel from the United States, German and French Air Forces.
The particular sites of the range are coordinated by CCC systems provided by Computer Application Services(www.casltd.co.uk) - SPICCCS at RAF Spadeadam & EPICCCS at Polygone.