Project 705 Lira was a Soviet military initiative focused on developing a new class of submarines during the Cold War. These submarines were designed to enhance the Soviet Navy's capabilities in underwater warfare and strategic deterrence. The project aimed to create vessels that could operate stealthily and carry advanced weaponry. The Lira-class submarines were notable for their unique design and features, including a double-hull structure. This design allowed for improved durability and reduced noise levels, making them harder to detect. The project reflects the broader efforts of the Soviet Union to maintain naval superiority against potential adversaries, particularly the United States.