. "25"^^ . . "See table"@en . "22"^^ . . "Watch Tower/Guard Tower/Keep attack"@en . "Arrowslits"@en . . "Arrowslits"@en . "Arrowslits is a technology in Age of Empires II HD: The African Kingdoms that can be researched at the University once the Imperial Age is reached. Once researched, it gives Watch Towers/Guard Towers/Keeps +1/+2/+3 attack."@en . "22"^^ . . . . . . "Arrowslits is a technology in Age of Empires II HD: The African Kingdoms that can be researched at the University once the Imperial Age is reached. Once researched, it gives Watch Towers/Guard Towers/Keeps +1/+2/+3 attack."@en . . .