This is a scientific experiment, well known to students of ethology, the science of animal behavior. The pattern seems to be common to all territorial animals, be they mammals, fish or birds. It certainly is typical for the animal called man. Our own history is full of examples. In another era, the Maccabees, a small guerilla band, vanquished the mighty Greek-Syrian empire, elephants and all.
Human history knows innumerable instances.
But the world witnessed with awe how the Finnish forces trounced the giant Red Army, which needed several months to gain the upper hand. Hitler was impressed, and after a year he invaded the Soviet Union. Lately this happened to the Americans. The primitive Vietnamese chased the modern French colonialists out of their country. But the big white supermen, who had the most advanced weapons on earth, were soundly beaten.