Russian air defenses shot down a drone over the city of Kaspiysk in Russia’s North Caucasus republic of Dagestan on the morning of Nov. 6, the republic’s head reported. “The circumstances of the incident are being investigated,” the regional chief, Sergey Melikov, said on his Telegram channel. The downing of a drone in Dagestan comes shortly after an unprecedented drone strike against a Russian military academy in neighboring Chechnya on Oct. 29. While Chechen strongman Ramzan Kadyrov blamed the Chechnya drone strike on Ukraine, a Ukrainian intelligence source said that the incident might have…