Attack (fencing)

In fencing, an attack is "the initial offensive action made by extending the arm and continuously threatening the opponent's target". In order for an attack to be awarded successfully, the fencer must accelerate their hand and feet towards the target. If the fencer does not accelerate the hand or foot, this is a preparation.
Tactical significance.
The purpose of an attack is either to make a hit or to provoke a defensive reaction. In order to do either, the attacker must create a threat. A fencer launches an attack by extending his weapon-carrying arm in such a way that the point threatens the opponent's target area (except in sabre where the blade need not be threatening the target when the arm is extended, the right of way can still be given). The attack may be delivered with the aid of appropriate fencing footwork.
In weapons governed by priority rules (foil and sabre), the attacker gets priority (as a reward for his initiative). He retains this priority until his attack either misses, falls short, or is parried. In foil, the attack must threaten the opponent's target with the point, while in sabre, an attack may threaten with either the point or the edge of the weapon.
Classification.
Any attack may be "prepared" by footwork (e.g. a step forward to bring you within range) or by bladework (e.g. a beat intended to upset your opponent's control over his weapon, draw a convenient reaction or confuse him into inactivity). Most elite fencers do not attempt to simply overpower their opponents with speed, but rely on the guile of the second intention to manipulate their opponents, thereby controlling them.
A direct thrust is sometimes known as "foining". (Middle English foinen, from foin, a thrust, from Old French foine, pitchfork, from Latin fuscina, three-pronged fish spear.)