a duty to protect his realm. bomb . and he was a devout christian. cultures will protect us lord from the magyars ours. otto's father had built fortifications as a defense against the hung gary and riders the saxon palace invalid for example. in times of danger the people could withdraw to forts behind ramparts ditches and palisades. the king gave the peasants land and weapons he also had grain stored so that his subjects could withstand longer sieges. lag. half.