K-4387 is a designation for a specific type of nuclear submarine used by the Russian Navy. It is part of the Project 667BDR class, which is known for its strategic capabilities and ability to launch ballistic missiles. These submarines are designed for stealth and endurance, allowing them to operate undetected in various maritime environments. The K-4387 was launched in the late 1980s and has undergone several upgrades to enhance its technology and weaponry. It plays a crucial role in maintaining the nuclear deterrent strategy of Russia, ensuring the country's defense capabilities in the face of potential threats.