Warfare History Network
When the United States finally entered World War I in 1917, steel became scarce, and at the same time the demand for ships increased. With the advent of World War II, steel was once again in short supply.
It is a fact that war has sparked some amazing innovations. It has at the same time spawned incredible desperation. The attempt by the U.S. Navy in both world wars to construct seagoing vessels made of concrete would seem to be a combination of the...
Read this story at The National Interest