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Deterrence existed long before nuclear weapons were invented and has been a feature of relations between antagonistic tribes and states since such relationships first existed. The concept of deterrence, convincing an adversary not to carry out an undesirable action by threatening them with harm, is widely understood and applied in military and nonmilitary contexts.

Air power is distinguished from sea and land power by its flexibility, speed, ubiquity, range and shock effect. These characteristics give air power a unique ability to concentrate force
and manoeuvre rapidly over long distances

Hypersonic technology has attracted a growing level of media interest of late.