MEN OF THE WEST
Aragorn saw that the troops were scared faced with such a large force. Aragorn said, "Come together men! We have defeated such evil during the War of the Ring! We shall do it again! Let us rid this Middle-Earth of evil once and for all!" that speech clearly gave the men courage and spirit to fight.
The enemy army had trolls, easterlings, orcs, pirates and so on. The enemy charged first. Eomer ordered "Give them a volley" Rohan archers fired an arrow volley that killed many of the enemy. "What are we waiting for?" said Gimli. "Charge!!" shouted Aragorn. The army of men charged while yelling battle cries. The battle raged on.
Aragorn left Eomer in charge of the battle while he and Gimli went into Minas Morgul.