Joint training “Thracian Viper” is taking place above Bulgarian airspace, with planes from Bulgaria, Canada, Greece, Romania, and the United States honing their capacity to collaborate on missions. F-16, F-18, MiG-29, and Su-25 planes, as well as AS-532 Cougar helicopters, are flying from Bulgarian, Greek, and Romanian territory for this Bulgarian-led action. Since 2010, “Thracian Viper” has been held yearly, giving an excellent chance for Allied air forces to polish their abilities in a multinational setting.