battles in lord of the ring

4. Battle of Pelennor Fields( Part 1)
The capital of Gondor, Minas Tirith, was besieged following the fall of Gondor's final defence, Osiligath. The Steward of Gondor refused to leave his son, who had been severely injured in that war, so the Wizard Gandalf took over Gondor's defenses. The sky blotted black and the Ringwraiths flew in their flying beats to strike fear into the defendors. Sauron's Dark army, despite the efforts of the defendors, broke through using siege towers and a huge battering ram. It was this time when the Rohirrin calvary arrived. They broke through the back of Sauron's Orcs and defeated them.