Personal injuries are not always the result of accidents. Unfortunately, sometimes personal injury is caused by intentional actions. When personal injury is inflicted by another person it is classified as assault or battery. Assault is defined as intentionally putting another person in reasonable apprehension of an imminent harmful or offensive contact. In layman's terms, assault is when someone threatens bodily harm and has the present ability to inflict that harm. Assault can take place without any physical harm occurring.
Battery occurs when the offender makes intentional and harmful contact with the victim without the victim's consent. Battery can take place without an assault, though it is rather uncommon. Generally the threat of injury, the assault, precedes the injury itself, the battery. It's easy to see why assault and battery often accompany each other.