A Course in Miracles Topic : Attack

  Attack is never justified and the only thing that you attack is your understanding of your True identity.

Attack is always made upon a stranger. ...There are no strangers in God's creation.         T-3.III.7:3,7.

If you were one with God and recognized this oneness, you would know His power is yours. But you will not remember this while you believe attack of any kind means anything. It is unjustified in any form, because it has no meaning. The only way it could be justified is if you and your brother were separate from the other, and all were separate from your Creator.   T-22.VI.12:1-4. 

All attack is Self attack. It cannot be anything else. Arising from your own decision not to be what you are, it is an attack on your identification.         T-10.II.5:1-3. 

The relationship of anger to attack is obvious, but the relationship of anger to fear is not always so apparent. Anger always involves projection of separation, which must ultimately be accepted as one's own responsibility, rather than being blamed on others. Anger cannot occur unless you believe that you have been attacked, that your attack is justified in return, and that you are in no way responsible for it. Given these three wholly irrational premises, the equally irrational conclusion that a brother is worthy of attack rather than of love must follow. What can be expected from insane premises except an insane conclusion? ... You cannot be attacked, attack has no justification, and you are responsible for what you believe. T-6.in.1:1-5,7.