(KYIV, UKRAINE) – Ukrainian forces have scored a major naval victory by disabling a Russian submarine in Novorossiysk using an advanced underwater drone, marking a new era in naval warfare and leaving the Russian Black Sea fleet with fewer safe harbours. The Varshavyanka-class submarine targeted in the strike, valued at around $500 million, carried Kalibr cruise missiles used against Ukrainian cities. The operation, conducted jointly by the Security Service of Ukraine and the Navy, relied on the submerged “Sub Sea…