A strike is a directed, forceful physical attack with either a part of the human body or with a handheld object, intended to cause blunt or penetrating trauma upon an opponent.
Senegalese Naval Infantry and US Marines practice striking.
Bas-relief of an elbow strike to the jaw at Angkor Wat (12th century) in Cambodia
Punching power is the amount of kinetic energy in a person's punches. Knockout power is a similar concept relating to the probability of any strike to the head to cause unconsciousness or a strike to