Russian air force planes have been operating out of Hmeimim air base in Syria, where a drone was shot down on May 21, 2018, as reported by the military. Alexander Kots / AP 
Russian air force planes have been operating out of Hmeimim air base in Syria, where a drone was shot down on May 21, 2018, as reported by the military. Alexander Kots / AP 

Russia shoots down drone over its air base in Syria