Russia is bringing back the world's largest surface combatant ship

Developed in the late 1970s, Russia's Kirov Class battle cruisers are the largest and heaviest surface combat ships in the world - and they're coming back with advanced weaponry according to Russia's TASS news agency.

At more than 800 feet long, with a displacement of around 25,000 tons, the Kirov dwarfs any navy ship short of an amphibious assault ship or aircraft carriers, but only one, the Pyotr Veliky, is still in service today.

Russian media says that another aging Kirov Class hull, the Admiral Nakhimov, is being fitted with Russia's newest anti-ship, anti-air, and surface-to-surface missiles.

Russia intends to return the Admiral Nakhimov to their fleet in 2019, at which time the Pyotr Veliky will be docked to undergo the same upgrades.

These include missiles of the Kalibr variety that recently hit targets in Syria from the Caspian Sea, Zircon hypersonic missiles which are slated to be ready by 2020, as well as a nasalized version of Russia's S-400 missile defense system, according to FoxtrotAlpha.

To accommodate these missiles, Russia plans to overhaul ship's vertical launch systems. That contract alone is worth 2.56 billion rubles, or $33.5 million, Navyrecognition.com notes.

As with all Russian military expenditures, outsiders have trouble imagining how the struggling petro-state will pay for them.

Though the Russian navy has hit several setbacks before, the Kremlin seems hellbent on revitalizing their navy.

NOW WATCH: Russia's military is more advanced than people thought

Please enable Javascript to watch this video