Moats provided castles with a further line of defense.

Moats surrounding castles protected them from siege towers and battering rams, war machines that were only effective when wheeled to the wall. It also made digging tunnels underneath the wall far more challenging. To get across a moat, the attacking army sometimes filled the moat with rocks and soil or built portable wooden bridges.

Support provided by

For new content
visit the redesigned
NOVA site