Assault is a crime of violence against another person. In some jurisictions, including Australia and New Zealand, assault refers to an act that causes another to apprehend immediate and personal violence, while in other jurisdictions, such as the United States, assault refers only to the threat of violence caused by an immediate show of force. Simple assaults that do not involve any aggravation such as use of a deadly weapon are distinguished from aggravated assaults in some jurisdictions.