Two days ago (Wednesday?) a US Navy submarine torpedoed and sank the 1,500 ton Iranian Navy frigate 'Dena' in the Indian Ocean, 40 nautical miles south of Sri Lanka. This was the first time since World War II that a US submarine had sunk a ship using torpedoes.
The Iranian ship was sailing home after attending a Fleet Review in the Indian port of Vishakapattinam. A US nuclear attack submarine found the Dena and sank it with a single Mark 48 heavy torpedo. Here is a 30 second video and another brief video explaining US naval action against Iran.
You can see in the video that when that torpedo hit, it raised the ship out of the water and completely broke off the stern (back) of the frigate.
More than 20 ships (some reports say the toll now is 76 vessels) of the Iranian Navy have been destroyed and sunk since the hostilities began on 28 February 2026.
What is to be noted is that these are 'one shot one kill' actions. That jet fighter being able to precisely destroy a moving ship using a gravity bomb (laser guided) dropped from the air and the submarine firing just one torpedo to sink one ship shows the devastating accuracy of modern warfare.
For comparison here is a clip from the World War 2 naval action movie Greyhound. Multiple shots, multiple torpedoes and keeping fingers crossed that they strike targets.
Fleet Review
