Russia’s military said early Monday that its forces had downed 75 Ukrainian drones overnight, with regional authorities reporting that falling debris set fire to a major oil refinery on the Black Sea coast. Air defense systems intercepted 47 drones over Rostov, 17 over the Black and Azov seas and 11 in other areas including one over the border region of Belgorod, according to the Russian Defense Ministry. Authorities in the Black Sea town of Tuapse in the Krasnodar region said debris from a downed drone sparked a fire at a Rosneft oil refinery there. “The Kyiv regime once again tried to attack…