It is only to clear from history that states rarely keep faith with each other, save in so far (and so long) as their promises seem to them to combine with their interests.
B. H. Liddell HartWith growing experience, all skillful commanders sought to profit by the power of the defensive, even when on the offensive.
B. H. Liddell HartThe effect to be sought is the dislocation of the opponent's mind and dispositions - such an effect is the true gauge of an indirect approach.
B. H. Liddell Hart