Supersoldier is a term often used to describe a soldier that operates beyond normal human limits or abilities. Supersoldiers are common in science fiction literature, films, TV programs, computer and video games, but have also made appearances in other related genres, such as military fiction and spy fiction. Many depictions of supersoldiers treat them as shock troops or heavy infantry, although others feature them as elite commandos or special forces personnel.
Supersoldiers are usually heavily augmented, either through eugenics (especially selective breeding), genetic engineering, cybernetic implants, drugs, brainwashing, an extreme training regime (usually with high casualty rates, and often starting from birth or a young age), or other scientific and pseudoscientific means or a combination of any of those. Occasionally, some instances also use paranormal methods, such as black magic, and/or technology and science of extraterrestrial origin. The creators of such programs are viewed often as mad scientists or stern military men, depending on the emphasis, as their programs will typically go past ethical boundaries in the pursuit of science and/or military might.