Thracian Viper is an integration exercise incorporating USAF, Romanian air force, and Greek Hellenic air force F-16s. The exercise is specifically designed for Bulgarian air forces to rehearse integration with F-16s ahead of their acquisition of F16s in 2025. Exercises, such as Thracian Viper 24, increase the ability of our collective partners to collaborate and operate in a joint, high-intensity environment, improve readiness, responsiveness, and interoperability.