A look at the sheer scale, history, and evolution of 10 of the biggest military submarines ever made, from early experiments ...

they probably recall the deadly U-boats of World War II. While that conflict saw widespread use of submarines, it was hardly the first to utilize the silent vessels. In fact, the first use of a ...

The first time military submarines had significant impact on a war was in World War I. First Russian submarines - in this gallery by TASS. Nukes stationed in Belarus can be used if necessary ...