Britain, however, was certain the war would be won on land. To John Fisher, head of the Royal Navy, Germany’s 28 U-boats were little more than “toys” and “playthings.” But Germany itself ...

The Germans occupied the entire Belgian coast during World War I. Their U-boats were based farther inland in Bruges, just outside the range of British naval guns, and passed through canals that ...

World War II submarines usually had a distinct look, shaped more like boats than the conventional crafts. But was there a ...