The Thracian Spring 2009 exercise took place in Bezmer Air Base in March 2009.
U.S. Air Forces in Europe participated with C-130 Hercules from 86th Airlift Wing, permanently based in Ramstein, Germany.
The Bulgarian Air Force were represented by Su-25K from Bezmer, two AS 532AL Cougar from Krumovo Air Base and one L-410 UVP-E3 from Vrazhdebna Air Base.