[Knight of Gondor]

I suppose if the trees remained as a part of the fighting force, the Uruk-hai wouldn't have stood a very good chance. It's so hard to kill an Ent, so that even the fighting force of Saruman could scarce make much of a mark against their anger. Most of their torches (fire would probably be the best [in this case, worst] weapon to use on an ent) would have been dropeed, because it made the Uruks easy targets for archers.