How many fast attack submarines (SSN) are there?

The correct answer reflects the current number of fast attack submarines (SSN) in the United States Navy fleet. Fast attack submarines are designed primarily for anti-submarine warfare, anti-surface ship warfare, and intelligence gathering. As of the latest data available, there are approximately 78 operational fast attack submarines in the Navy.

This number is significant as it showcases the Navy's capability to maintain a robust and responsive underwater offensive and defensive posture. Each submarine plays a crucial role in various missions, including surveillance, reconnaissance, and as a deterrent against potential adversaries. The specific number can fluctuate due to new constructions, decommissionings, or modifications in the fleet, but as of the latest estimates in 2023, 78 is the recognized figure for fast attack submarines.