The more usual reason for adopting a strategy of limited aim is that of awaiting a change in the balance of force ... The essential condition of such a strategy is that the drain on him should be disproportionately greater than on oneself.
For if we merely take what obviously appears the line of least resistance, its obviousness will appeal to the opponent also; and this line may no longer be that of least resistance. In studying the physical aspect, we must never lose sight of the psychological, and only when both are combined is the strategy truly an indirect approach, calculated to dislocate the opponent's balance.
