The Delta-class IV submarines have quite a few unique distinctions under their belts. For better or for worse, none of them are due to success in combat or even events... Here’s What You Need to ...

Russia's Delta-IV class nuclear ballistic missile submarine Tula now looks to be sporting an armor screen, commonly known as a "cope cage," on top of its conning tower to help protect against drones.

One of the Northern Fleet’s Delta-IV class submarine sailing the surface of the Barents Sea. (Thomas Nilsen/The Independent Barents Observer) After more than six years of upgrades, the old ...