Ents made to destroy Isengard?

[Morsul the Dark]

well with the success of my hobbit chosen people thread I'm encouraged to ask another question haunting my mind

Does anyone knowthe history of dwarves and ents... what I mean is ents were created to prtect trees from dwarven axes...and yet i do not recall any sign of the two duking it out in fact dwarves live in the mines for the most part and you really dont hear about them wastefully destroying forests...

so did they ever battle or did the ents just appear and kind of lay low not doing much until that fated day of basicly taking out saruman

its like chess
knight(ent) takes rook(isengard)
while pawn(hobbit) checkmates king(sauron)