The United States Air Force's 4th Expeditionary Air Support Operations Squadron is a combat support unit forward deployed in Eastern Europe to locations in Poland, Lithuania and Romania where it provides Joint Terminal Attack Controllers and C2 functions for both the Army and the Air Force.

It was previously located at Mannheim, Germany with V Corps until it was inactivated in 2013.

It deployed personnel and command, control, communications, and computer (C4) systems and associated support equipment and materiel in order to establish an Air Support Operations Center) as part of the Theater Air Control System and providing airpower support to US Army V Corps.

The exercise took place in parts of Romania, Greece and Bulgaria.

[3] This article incorporates public domain material from the Air Force Historical Research Agency