Crewless remotely-controlled military ships might seem like a pretty modern innovation, but you might be surprised to learn they were used in the 1920s.
If you're ever out at sea and come across a brightly colored plastic boat riddled with bullet holes, chances are it was used ...
Add Yahoo as a preferred source to see more of our stories on Google. Gchapel/Getty Images When World War I ended in 1918, the United States entered a relatively long period of peacetime — this period ...
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