Putin's Moskva revenge on cards? Russia deploys all its submarines in Black Sea

Amid upgraded fightback of Ukrainian troops to Russian offensive, Vladimir Putin has planned a change of strategy. All Russian submarines have reportedly been deployed in the Black Sea. A Crimea Realities report stated that after May 13, all submarines in the Russian seaworthy fleet have been sent off to the Black Sea from Sevastopol's Southern Bay in Crimea fuelling talks about Putin's change in strategy. The Russian Black Sea fleet consists of 6 submarines of the 636 ‘Varshavyanka' class. The submarines in the Russian fleet are called Kilo-class, they are multi-purpose, diesel-centric and have a range of 7500 miles making it easier for them to strike Ukraine. As per reports, every submarine can carry 4 nuclear warheads. Watch this video for more details.