The European Buckler was brought to Oceanyka by the Portuguese, but these were not their most famous users. That fame goes to the Spanish "rodeleros", an integral part of early "tercio" combined-arms formations, meant to breach through pike walls using speed, aggression and fine swordsmanship.
EFFECT:
Against all melee attacks, this shield provides +2 ARM.
Against all ranged attacks, this shield provides no armour.