Oath of Eorl

In J. R. R. Tolkien's universe of Middle-earth, the Oath of Eorl is the alliance sworn between the Middle-earth Kingdoms of Rohan and Gondor. The Oath was sworn by Eorl on behalf of his people and heirs that if Gondor was attacked the Rohirrim were bound to come to its aid under pain of falling into shadow and becoming an accursed people. In return the Steward Cirion granted the province of Calenardhon to the Eotheod to form the Kingdom of Rohan, and the borders of that kingdom were established.

The Agreement did however stipulate that Gondor had to come to Rohan's aid although this was not sworn upon by the Steward. When Gondor needed Rohan's aid the Red Arrow (which means danger) was dispatched from Minas Tirith. This arrow was brought to King Théoden of Rohan by a messenger of Gondor in The Return of the King while Minas Tirith was besieged by Sauron. For faster communication between the two allies, the warning beacons of Gondor were used. These beacons were placed on seven hills along the northern ridge of the White Mountains.

es:Juramento de Eorl no:Cirion