The
Reunited Kingdom of Arnor and Gondor is a
fictional realm from
J. R. R. Tolkien's
Middle-earth.
When
Aragorn became
King of Gondor at the end of the
War of the Ring, he was also the descendant of the
Kings of Arnor, and by right he was crowned
High King of both Arnor and Gondor and Reunited the Two Kingdoms, which had politically split long ago. Using the resources of the victorious Gondor, Aragorn, taking the royal name King Elessar, rebuilt Arnor in the North.
With the defeat of
Sauron and
Mordor, the Reunited Kingdom of Aragorn was without question the dominant power of Northwest Middle-earth during his long reign.
During Aragorn's reign, the Reunited Kingdom expanded to retake all territories that had originally belonged to both Arnor and Gondor at their greatest extents, excluding only
Rohan (the grant of which he renewed), and the
Shire, the
Druadan Forest, and
Fangorn Forest (which became
protectorates).
Additionally, during the 1st century of the
Fourth Age Aragorn led the armies of the Reunited Kingdom in many successful military campaigns that retook the province of South Gondor (
Harondor), re-established dominance over
Rhovanion (Wilderland) eastwards to the
Sea of Rhûn[
citation needed], and conquered the
Corsairs of Umbar, who had attacked Gondor during the War of the Ring.
Umbar had originally been a
Númenórean port and an important city of Gondor in ancient times before ultimately being conquered by the followers of
Castamir following the
Kin-strife, who distanced Umbar from Gondor and befriended
Harad. Elessar finally reconquered the city, and the Reunited Kingdom stretched South along the coast from the Mouths of the
Anduin River to the Haven of Umbar. Much of Harad was defeated and became tributary states.[
citation needed] Aragorn was also held to be the protector of
Dale (which included
Esgaroth), and the
Dwarf realm of
Erebor,[
citation needed] although these allies maintained their own rule and kings. Aragorn is assumed to have rebuilt the old northern capital of
Annúminas.
[1]
The only threats or rivals to the Reunited Kingdom into the Fourth Age would have been the Haradrim, who had not been subjugated, and the Easterlings.
https://en.wikipedia.org/wiki/Reunited_Kingdom