For decades, many of the most advanced military weapons were developed in complete secrecy.

Military innovation is often driven by competition and the desire for a tactical advantage. Behind the scenes of every major war, governments, defense engineers, and scientists have envisioned weapons ...

Add Yahoo as a preferred source to see more of our stories on Google. GettyImages 544987335 As Nazi Germany staggered toward its chaotic end, desperation drove it to embrace radical - and often ...

As Nazi Germany staggered toward its chaotic end, desperation drove it to embrace radical - and often bizarre - technological experiments in a frantic attempt to reverse the tide of war. Nowhere was ...