What is the mission of the Borei class submarine?

• A. Strategic nuclear deterrence.
• B. Surface warfare operations in coastal waters.
• C. Humanitarian relief missions.
• D. Training and reserve deployment.

Answer: (A)

The main idea is strategic deterrence through a stealthy, survivable platform. Submarine-launched ballistic missile (SLBM) submarines provide a secure second-strike capability: they spend long periods underwater, hidden from detection, and can launch missiles even after an attack on land-based forces. This makes any nuclear aggression unlikely, because no one can guarantee destroying all retaliatory options.

The Borei class is Russia’s modern fleet of ballistic-missile submarines. Designed to carry and launch SLBMs (Bulava missiles), they are built for long, covert patrols under the world’s oceans. Their primary purpose is to ensure a credible, enduring nuclear deterrent by remaining a survivable leg of the nuclear triad, capable of delivering a retaliatory strike if necessary. That focus on deterrence, survivability, and global reach is what sets their mission apart from other naval roles.

That’s why this isn’t about surface warfare, humanitarian missions, or routine training—the Borei class is specifically tasked with strategic nuclear deterrence.