If I recall from the books, the Unsullied are given spears, a shield, a tunic, and a spiked cap when they are sold. This makes them very lightly armored which would probably be a benefit for combat in southern Essos, which is a bit south of Dorne if I recall. However, in contrast to the mailed Frey pikemen this makes them seem very unprepared to do battle with a trained Westerosi force. If Dany had landed instead of marching on Yunkai and fought a Lannister army of similar numbers, who do you think would win?
Edited by Caezaire, 21 April 2014 - 12:45 AM.