Well, the principal is hardly new - naturally you fight to your own strengths: hence your own forefathers avoiding pitched battles when unsuitable, the Iraqis/Vietnamese, etc turning to guerilla war rather than fighting pitched battles on our terms.
I recall a great quote regarding the Algerian war (May have been in the Battle of Algiers) where a French officer bellows at a captured fighter words to the effect of “Why won’t you fight honourably? Why do you use bombs and other cowardly tactics?”, to which the prisoner replies calmly,”Give us your tanks and helicopters and planes and we will fight you honourably, monsenieur.”
Anyone who fights in ways that suit the enemy are fools. Obviously there are limits, as demonstrated by unneccessary damage to civilians or use of atrocities, but war is not about honour. War is about victory.