Is all warfare really based on deception?

Actually it's Armed Robbery Writ' Large..and nothing else.

Yes. Deception, greed, mania, insanity, violent revelry, madness on mass scale unprecedented in the annals of universal history until mankind came onto the scene to display the horror of warfare in a way nature could never match.

Warfare is based on a Hellish Deception of Mega Proportions, be afraid, be very afraid.

"Gong"

A wise general would use deception. There is not deception in all wars.

Not really. There's not really anything deceptive about a missile up your a$$. No offense.