“Archer and hand infantry hitpoints increased.”—In-game description
Infantry Breastplate is a technology in Age of Empires III that can be researched by European civilizations at the Arsenal; Iroquois and Sioux can also research it at the Longhouse and the Teepee respectively once the New Ways Home City Card has been sent. Once researched, it increases the hit points of melee infantry and archers by 10%.
|Infantry||Infantry Breastplate · Counter Infantry Rifling · Socket Bayonet · Flint LockA · Paper CartridgeA · Military DrummersA|
|Cavalry||Cavalry Cuirass · Ranged Cavalry Caracole · PillageA|
|Artillery||Gunner's Quadrant · Heated Shot · Professional GunnersA · TrunionA · Incendiary GrenadesG|
|A requires the Advanced Arsenal Home City Card|
G only available to civilizations with Grenadiers