TreeBeard

Spirits were sent by Eru Ilúvatar to inhabit the trees, which the Vala Yavanna had created along with other plants or olvar. The Vala longed for their protection since Morgoth orMelkor was destroying the trees and olvar, which could not defend themselves from him. The Ents were created by Ilúvatar at the behest of Yavanna as the Shepherds of the Forest or Tree-herders. Entwives were also created for the Ents, but, in the Second Age, were driven out by Sauron.

Treebeard is the oldest of three remaining original Ents.He is said to have once roamed all of the forests in Middle-earth, which included the Misty Mountains, Mirkwood,Mordor, and the Blue Mountains. After the loss of the Entwives by the end of the Third Age, he and the remaining Ents dwelt in the Forest of Fangorn. This led the remaining Ents into isolation and all information from the outside world was cut off. The arrival of Merry and Pippin shifted Treebeard's attention to take action against Saruman for hacking down his trees. He led the Ents to war against Saruman and his Orcs. Treebeard later realised that while Saruman had learned much from him, the Wizard had shared no useful information of his own.

Treebeard had been friends with Saruman. It is described in The Two Towers that Saruman visited Treebeard in Fangorn Forest and had talked with him on various subjects of concern. Saruman gathered information from Treebeard about the Forest of Fangorn; its intertwining paths were of particular concern to him.[1]

After Merry and Pippin's meeting with Treebeard, Treebeard called an Entmoot, which lasted three days, to decide to call an attack on Isengard and Saruman. SinceLeaflock and Skinbark were the oldest of the Ents along with Treebeard, they refused to fight, however, Treebeard thought he was going to his doom during "the last march of the Ents."Treebeard hoped that some of the younger Ents would come instead of just the two, and, during the night he spread the word. They later launched an assault on Isengard.

After Treebeard ordered the Ents to march to Isengard, the Ents felled Saruman's walls and destroyed every object in and around Isengard; the Tower of Orthanc could not be breached, but Saruman was trapped within. Treebeard stopped the attack on the tower when he realised their efforts were in vain; the tower was too strong. The Ents were ordered to unleash the waters of the River Isen, which flooded Isengard. When Merry and Pippin departed Treebeard he requested them to watch for the Entwives. At one point in the book, Tolkien gives hints on the whereabouts of the Entwives. It is speculated that they were spotted by Samwise Gamgee's cousin Hal in the North Farthing. However, this may or may not be conjecture: