Another classic battle in The Lord of the Rings film trilogy is the Siege of Minas Tirith, which takes up a good percentage of the film in The Return of the King. In the film, around 250,000 Orcs under the command of the Witch King of Angmar, working for the Dark Lord Sauron, launch an assault on Gondor’s capital city of Minas Tirith, defended by the wizard Gandalf and less than 10,000 Gondorian soldiers. The two sides bombard each other with catapults, before the Orcs flood forward. Despite taking enormous losses, they use siege towers to scale the walls and break down the front gates with trolls.
Minas Tirith is about to fall when suddenly King Theoden of Rohan arrives with 6,000 Rohan cavalry, who launch an assault on the Orcs sprawled out over the Pelennor Fields. The Orcs are nearly routed before before Olpyhants arrive with 13,000 Easterlings, and the sway of the battle is turned again. Rohan and Gondor are again on the verge of defeat, until Aragorn, Gimli, and Legolas arrive with the Army of the Undead to wipe out the orc army.