A “Buk” anti-aircraft battery launches a ground-to-air missile during the “Escudo Soberano 2015” (Sovereign Shield 2015) military exercise in San Carlos del Meta in the state of Apure

A “Buk” anti-aircraft battery launches a ground-to-air missile during the “Escudo Soberano 2015” (Sovereign Shield 2015) military exercise in San Carlos del Meta in the state of Apure

A “Buk” anti-aircraft battery launches a ground-to-air missile during the “Escudo Soberano 2015” (Sovereign Shield 2015) military exercise in San Carlos del Meta in the state of Apure April 15, 2015. REUTERS/Marco Bello