Tolkien's Battles

[gayare'dion]

didnt morgoth use mechanical monsters once ? i thought i read something about that here, and i thought it sounded pretty cool.
also the "devilry" at helms deep must be some type of new mechanical warcraft, that saruman used cause it talks about him having a mind of wheels or something.
ohh and at pelennor fields with the catapults that launched the clay pots that exploded when hit, like a giant molotof (witch reminds me of gladiator in the begginging)where pretty advnanced i guess you could say. i love tolkien's battles!