Wonder weapons

Wonder weapons is the term given to very advanced weaponry whose design, production or deployment in the field of battle is impractical or ill-timed. Such weapons are radical departures or improvements of the arms or machinery used at the time and are often intended to turn the tide of a current conflict. These weapons are either never completed, or are introduced near the end of hostilities in limited capacity so the expectations far exceed the results.

The term is a calque of the German word "Wunderwaffen", which was coined during World War II. Amongst Germans, it was abbreviated into "Wuwa" /vu va/, which belittled these projects.

The secrecy surrounding the development of new weapons sometimes conflicts with the weapon developers’ hype of new products, resulting in common advancements being mislabelled as wonder weapons.

The term is often used to describe weapons that were being developed in Nazi Germany just prior to the end of the war, such as the Wasserfall missile, the Messerschmitt Me 262 and the failed German atomic bomb project led by Werner Heisenberg, and is also used to refer to the V-weapons program.

Many wonder weapons of the past become the "conventional weapons" of later conflicts when fully developed--this has happened to dreadnoughts, tanks, and long-range missiles. More recently, offensive developments in electromagnetism with railguns, lasers, microwave, or radio frequency radiation are often termed wonder weapons.