Dagorlad

A vast plain lies outside the gates of Mordor. The greatest battle of the Second Age was fought at Dagorlad between the forces of Sauron and the Last Alliance of Elves and Men in S.A. 3434. There were heavy losses on both sides, but the armies of [Elendil]] and Gil-galad eventually forced their way into Mordor, guaranteeing the fall of Sauron. Dagorlad remains a grey, treeless field which preserves the memory of those who died there. No Gondorian general's education is complete without at least one trip to Dagorlad.