Ukraine attacked a military airfield and two oil refineries in the Krasnodar region of Russia, according to RBC-Ukraine sources. Sources say explosions rocked the Kushchevsk military airfield and the Ilsky and Sloviansk oil refineries on the night of April 27. The facilities were targeted by drones belonging to the Security Service of Ukraine (SSU). The attack on the airfield was organized by the SSU in collaboration with the Armed Forces. The airfield housed dozens of military aircraft, radar systems, and enemy electronic warfare equipment. SSU drones also struck the rectification and atmosph…