RSM-56 Bulava

The RSM-56 Bulava is a submarine-launched ballistic missile (SLBM) developed for the Russian Navy and deployed in 2013 on the new Borei class of ballistic missile nuclear submarines. It is intended as the future cornerstone of Russia's nuclear triad, and is the most expensive weapons project in the country. The weapon takes its name from bulava, a Russian word for mace.