Applying the lessons of late 19th/early 20th century asymmetrical warfare

[William F. Owen]

It strikes me as possible (and undesirable) to reject out of hand a morally and ethically defensible technique that was employed to achieve a policy goal I regard as immoral. Without diminishing my moral standing to criticize the abhorrent policy goal, I should try to remain open-minded enough to recognize a technique that appears to be effective, and which could be put to use pursuing a more worthy goal.

So given a morally justifiable end, you can employ "effective" means? This is extremely context dependant, but I do agree that it is the purpose to which force in employed that should largely (not exclusively) define its political merit. However almost every NGO in the world rejects that view.