That's true of a variety of watercraft, but it isn't for submarines, which have always been called boats. The reason for this extends throughout the history of submarines, which goes back quite a ...

In 1914, Germany began producing Type U 19 submarines (pictured), which were some of history's most significant military submarines. Boats of this type featured between one and two deck guns and ...

The Delfin ("Dolphin") was a Greek submarine in service with the Hellenic Navy during the Balkan Wars and the First World War ...

The future of the four second-hand submarines Canada purchased in 1998 remains contentious. Hover over the submarine names to read more about each sub. Select the second tab to learn about nuclear ...