It struck me the other day--and not for the first time, I might add, since I'm so ahead of the game it would blow your mind--that terrorism is not that surprising an offspring of more 'conventional warfare'. For all its detractors, terrorism is but another notch carved into the scarce virgin territory of mankind's belt, a further honing of skill in that most loathsome of crafts--murder.
For your consideration:

476 A.D. --
The Roman Empire Falls. Long ago, before even
unicorns were invented, the almighty Roman Empire was decimated* by hordes of
barbarians from the Germanic tribal regions of Europe. The highly-organized, efficient, top-of-class Roman Army was no match for the raw, brutal tactics of the barbarians--kill/rape, pillage, burn, move on. No sharp uniforms, no fancy swordplay, no philosophers--
yet.
1775 --
The American Revolutionary War. The finely-tuned war machinery of the then-alpha-male British Empire simply could not compete with the ill-trained, ill-equipped rapscallions hiding behind trees in the Colonies. Whatever happened to gentlemanliness in warfare? I mean, tut-tut--how can you have a good war if you don't all simply line up and walk towards each other--
slowly--shooting at each other, in a match of 'which nation of pillagers can afford to have the most soldiers with guns?' It's clearly the only way to do battle...or, more properly,
was.

1945 --
The Atomic Bomb. Who needs a fucking army? We'll just spend millions of dollars, rape the world's greatest scientific minds, and drop a goddamn instant-apocalypse on you. Easy. Done. We're smarter than you, so we win.

2001 --
September 11th. "Tell ya what--we're smart enough to know you're dumb enough to let us use your own icons of technological advancement against you. All we need are a handful of dudes with fucking
box cutters and we will cripple your nation for the rest of its life. Better still, you will never be able to fight back--enemies have never been so clearly
undefined. We are not a nation--we are a merely a people with a common interest. We are everywhere. We are dedicated. We win. Eat that."
Shit, man--
what's next?