Eire
From Halopedia, the Halo wiki
Eire was one of the six continents on the planet Arcadia,[1] a UNSC colony in the Procyon system. It was abandoned after the Battle of Arcadia in 2531 and destroyed by the Covenant in the Fall of Arcadia in 2549.
Trivia
Its name is most likely derived from the Gaelic name for Ireland, Éire.
