In the last years of Denethor I the race of uruks, black orcs of great strength, first appeared out of Mordor, and in 2475 they swept across Ithilien and took Osgiliath. Boromir son of Denethor (after whom Boromir of the Nine Walkers was later named) defeated them and regained Ithilien; but Osgiliath was finally ruined, and its great stone-bridge was broken. No people dwelt there afterwards. Boromir was a great captain, and even the Witch-king feared him. He was noble and fair of face, a man strong in body and in will, but he received a Morgul-wound in that war which shortened his days, and he became shrunken with pain and died twelve years after his father.
After him began the long rule of Cirion. He was watchful and wary, but the reach of Gondor had grown short, and he could do little more than defend his borders, while his enemies (or the power that moved them) prepared strokes against him that he could not hinder. The Corsairs harried his coasts, but it was in the north that his chief peril lay. In the wide lands of Rhovanion, between Mirkwood and the River Running, a fierce people now dwelt, wholly under the shadow of Dol Guldur. Often they made raids through the forest, until the vale of Anduin south of the Gladden was largely deserted. These Balchoth were constantly increased by others of like kind that came in from the east, whereas the people of Calenardhon had dwindled. Cirion was hard put to it to hold the line of the Anduin.
‘Foreseeing the storm, Cirion sent north for aid, but over-late; for in that year (2510) the Balchoth, having built many great boats and rafts on the east shores of Anduin, swarmed over the River and swept away the defenders. An army marching up from the south was cut off and driven north over the Limlight, and there it was suddenly attacked by a horde of Orcs from the Mountains and pressed towards the Anduin. Then out of the North there came help beyond hope, and the horns of the Rohirrim were first heard in Gondor. Eorl the Young came with his riders and swept away the enemy, and pursued the Balchoth to the death over the fields of Calenardhon. Cirion granted to Eorl that land to dwell in, and he swore to Cirion the Oath of Eorl, of friendship at need or at call to the Lords of Gondor.’ In the days of Beren, the nineteenth Steward, an even greater peril came upon Gondor. Three great fleets, long prepared, came up from Umbar and the Harad, and assailed the coasts of Gondor in great force; and the enemy made many landings, even as far north as the mouth of the Isen. At the same time the Rohirrim were assailed from the west and the east, and their land was overrun, and they were driven into the dales of the White Mountains. In that year (2758) the Long Winter began with cold and great snows out of the North and the East which lasted for almost five months. Helm of Rohan and both his sons perished in that war; and there was misery and death in Eriador and in Rohan. But in Gondor south of the mountains things were less evil, and before spring came Beregond son of Beren had overcome the invaders. At once he sent aid to Rohan. He was the greatest captain that had arisen in Gondor since Boromir; and when he succeeded his father (2763) Gondor began to recover its strength. But Rohan was slower to be healed of the hurts that it had received. It was for this reason that Beren welcomed Saruman, and gave to him the keys of Orthanc; and from that year on (2759) Saruman dwelt in Isengard.
It was in the days of Beregond that the War of the Dwarves and Orcs was fought in the Misty Mountains (2793-9), of which only rumour came south, until the Orcs fleeing from Nanduhirion attempted to cross Rohan and establish themselves in the White Mountains. There was fighting for many years in the dales before that danger was ended.
When Belecthor II, the twenty-first Steward, died, the White Tree died also in Minas Tirith; but it was left standing ‘until the King returns’, for no seedling could be found.
In the days of Túrin II the enemies of Gondor began to move again; for Sauron was grown again to power and the day of his arising was drawing near. All but the hardiest of its people deserted Ithilien and removed west over Anduin, for the land was infested by Mordor-orcs. It was Turin that built secret refuges for his soldiers in Ithilien, of which Henneth Annûn was the longest guarded and manned. He also fortified again the isle of Cair Andros 1 to defend Anórien. But his chief peril lay in the south, where the Haradrim had occupied South Gondor, and there was much fighting along the Poros. When Ithilien was invaded in great strength, King Folcwine of Rohan fulfilled the Oath of Eorl and repaid his debt for the aid brought by Beregond, sending many men to Gondor. With their aid Turin won a victory at the crossing of the Poros; but the sons of Folcwine both fell in the battle. The Riders buried them after the fashion of their people, and they were laid in one mound, for they were twin brothers. Long it stood, Haudh in Gwanûr, high upon the shore of the river, and the enemies of Gondor feared to pass it.