America's dominance beneath the waves grows as its newest nuclear submarine completed its initial sea trials and prepares for active deployment.

China's been steadily upgrading its submarine fleet and weapons to detect those of the US should the two nations go to war.

Converted bombers would roar a few hundred feet above the sea dropping depth charges and firing rockets; with over 120 Allied aircraft shot down while attacking submarines this was in no way a one-sided affair.

The US Navy (USN) procured additional Most Aggressive Features (MAF) to equip Virginia-class platforms. The capability is a major component of the submarine’s Improved Advanced Hybrid (IAH) propulsor.

The U.S. Navy exclusively operates nuclear-powered submarines because its global power projection doctrine demands the unmatched range, speed, and submerged endurance that only nuclear reactors can provide.

When some Ohio-class submarines were retrofitted with non-nuclear Tomahawk missiles instead, this one sub was the first to fire them in combat.

The Trump administration bombed what the president referred to as a 'drug-carrying submarine' on October 16 in the Caribbean