There are over 200 submarines in the world currently. Of these, North Korea has the most with 78 and the United States is second with 72.
United States Submarine Operations in World War II has 577 pages.
There are literally hundreds of types of submarine robots. All major countries of the world develop them.
Submarines are made in many places all over the world
Virginia class submarine
David Bushnell launched what is regarded as the world's first submarine.
The world's first atomic powered submarine was the USS Nautilus.
The USS Nautilus (SSN-571) was the world's first operational nuclear submarine.
Depends on the type of submarine...
Only one US submarine sank in World War One.
A U-boat was a submarine used by Germany in World War 1 and World War 2.
The submarine you are thinking about was the USS Nautilus. It was the world's first nuclear powered submarine and commissioned into the US Navy in 1955
The Submarine Caper has 187 pages.