KnowraRavelinLinked fromLinked fromThe 3 pages that link to Ravelin, each with the reason it gives.All 3Broader topic 3Trace italienneBroader topic: It shielded the curtain wall and divided attackers approaching the main defenses.BastionBroader topic: Ravelins extended a bastion system’s defense beyond its main walls.Bastion fortBroader topic: It shields the curtain wall and gate from direct artillery fire.