Third line: say maybe 60 HMMWV's armed with browning 50 cal.'s
Fourth line infantry, For disposing of the last orcs.
Plan: Shoot the gate to shit, Actually shoot everything to shit. Drop frodo's ass at mt. doom Rename mt. doom to: mt. anything else but mt. doom Make frodo drop the ring at gunpoint. Waste his ass anyway. Actually waste evryones asses now while we're at it. Decide that wasting the population of middle earth with mentioned battleforce is going to take ages. Tactical retreat. Nuke the fuckers from orbit.
Result: Everyone is dead. Everything, is dead. Middle earth is a fricken crater/Radioactive wasteland.
Now I used US hardware since most of you gitz recognize them easily.