The recent US Navy shipbuilding plan marks the impending departure of a veteran force. All four Ohio-class guided-missile submarines (SSGNs) – USS Ohio (SSGN-726), USS Florida (SSGN-720), USS Michigan (SSGN-727), and USS Georgia (SSGN-728) – are slated for retirement within the next four years.

These venerable vessels, pushing past 40 years of service, represent the culmination of the Cold War’s strategic deterrence philosophy.

Their retirement signifies a shift in the Navy’s submarine capabilities.

From Ballistic Might to Land-Attack Precision

Originally designed as ballistic missile submarines (SSBNs), these Ohio-class boats underwent a strategic transformation between 2002 and 2007.

The Navy, responding to the post-Cold War security landscape, converted them into SSGNs.

This involved replacing their nuclear launch tubes with a formidable arsenal of 22 Tomahawk Land Attack Missiles (TLAM) each.

Each tube can house seven TLAMs, bringing the total missile capacity of an SSGN to a staggering 154.

This conversion provided the Navy with a powerful tool for precision strikes and land warfare support.