It was the first combat victory of the modern submarine.

Growing numbers of modern submarines became available from 1942 onwards.

In 1902, he made a trip on the first modern submarine, the Holland.

Japan is increasingly alarmed about Chinese military purchases and investments in modern submarines.

Nearly all modern submarines are now designed with them.

The country has acquired several modern Russian-made submarines and destroyers.

Later that year, her engines were transferred to a more modern L-class submarine.

It takes specialized technology to find and attack modern submarines.

The Biosphere is much like a modern, nuclear submarine, which needs to surface only to replenish groceries.

About five modern submarines are involved, Navy officials said.