Laissez faire recognizes that political power (destruction) should only be used to fight destruction, i.e., force should only be used to retaliate and defend against those who initiate force — whether they be a gang of street thugs, or a whole nation bent at war.
Observe that a man gains nothing from killing an attacker, he is no better off then before he was attacked — he has only prevented a greater loss (his death) by putting an end to the attacker. Only the mind creates, force destroys. When force is directed towards destroying force, its use is entirely proper, since it protects those who create.

