Air Force Brings E-3 Sentry to NATO Exercise for First Time in 20 Years > U.S. Department of Defense > Defense Department News
![File:NATO Air Base Geilenkirchen Open Day 2017 NATO Air Base Geilenkirchen Open Day 2017 IMG 2032 (34911854583).jpg - Wikimedia Commons File:NATO Air Base Geilenkirchen Open Day 2017 NATO Air Base Geilenkirchen Open Day 2017 IMG 2032 (34911854583).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/3/3a/NATO_Air_Base_Geilenkirchen_Open_Day_2017_NATO_Air_Base_Geilenkirchen_Open_Day_2017_IMG_2032_%2834911854583%29.jpg)
File:NATO Air Base Geilenkirchen Open Day 2017 NATO Air Base Geilenkirchen Open Day 2017 IMG 2032 (34911854583).jpg - Wikimedia Commons
![File:NATO Air Base Geilenkirchen Open Day 2017 NATO Air Base Geilenkirchen Open Day 2017 IMG 2130 (34880122694).jpg - Wikimedia Commons File:NATO Air Base Geilenkirchen Open Day 2017 NATO Air Base Geilenkirchen Open Day 2017 IMG 2130 (34880122694).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/f/fb/NATO_Air_Base_Geilenkirchen_Open_Day_2017_NATO_Air_Base_Geilenkirchen_Open_Day_2017_IMG_2130_%2834880122694%29.jpg)