The Limiting Factor submarine is capable of carrying two passengers to the deepest ocean trenches. Credit must be given to the creator.

TKMS denied careless sharing of submarine technology with would-be competitors, as European shipbuilders scramble for contracts worldwide.

Pro-Ukrainian activists claim the barriers, which can close the harbor to marine drones, are the latest evidence that a long-mothballed submarine base, once known as Object 825 GTS, is being ...