The Arannaith-i-Mithlond are heroes of Noldorin lineage who have long protected the Grey Haven from danger, utilizing the same fighting style as their liege lord Gil-Galad. While their number continue to dwindle in the Third Age, there remain yet enough of these elite warriors to defend to the last the final fragments of the Elven Kingdom on Middle-earth. You will be able to see the unit in the upcoming update.