> Moats and high walls became obsolete when canon fire became common.
Moats and high walls, sure. But to this day, the absolute best way to stop any attacker is to dig a trench (most minus water) and to build low parapets, primarily of dirt, sand, barbed wire and ideally some anti tank stuff.
Moats and high walls, sure. But to this day, the absolute best way to stop any attacker is to dig a trench (most minus water) and to build low parapets, primarily of dirt, sand, barbed wire and ideally some anti tank stuff.
The moat never really went away.