. "The Stone Defense Armor Class is an armor class in Age of Empires II. All units that have an attack bonus against this class deal bonus damage against buildings with this armor class. All information that follows is current as of patch 5.0."@en . . . . . . "Armor Class: Stone Defense"@en . . "The Stone Defense Armor Class is an armor class in Age of Empires II. All units that have an attack bonus against this class deal bonus damage against buildings with this armor class. All information that follows is current as of patch 5.0."@en . . . . . . . .