Visited Geilenkirchen many years ago to see an ex-Kipper eng on the NATO E3. Joined in the Oktoberfest in the Hangar and speaking to the various nation's aviators involved operating the aircraft, it quickly became clear the Turkey/Greece relationship was a major issue. Crew complements and rosters were being changed purely on this basis. Madness, but I guess while both countries are paying in to the Nato coffers, the top brass pretend it works just fine.