Which inherent risk dramatically increased for Roman siege towers when erected against wooden fortifications?

💡 Explanation

When siege towers were used against wooden fortifications, there was high risk of fire because towers typically contained flammable materials and wooden walls are highly susceptible to ignition by firepots or flaming projectiles. Therefore susceptibility to fire damage increases, rather than structural compromise, reduced mobility or projectile vulnerabilities, which are less influenced by the presence of wooden structures.

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