How did the daimyo protect his castle?
How did the daimyo protect his castle? High walls and moats surrounded these grand castles. They protected the daimyo and his men from the armies of other feudal lords.
How were castles protected from enemies?
Battlements. Battlements were walls on the roof of a castle. They had higher walls, called merlons, with lower gaps between, called crenels. Defenders would use crossbows to shoot arrows through the crenels,and then hide behind the higher merlons.