Which consequence emerged when Roman fortresses over-relied solely on perimeter walls for defense?

💡 Explanation

The interior vulnerabilities increased because the *funneling effect* concentrates damage if a breach occurs: therefore the limited defense points reduces their resilience, rather than improved tactical positioning or broad area support from a larger region.

• Which limitation in Byzantine silk production contributed to supply variances?
• Which optical effect enabled Ibn al-Haytham to more accurately trace light paths impacting curved surfaces?
• Which data governance risk rose when Andean cultures utilized quipu?
• Which mechanism limited ancient Chinese gunpowder effectiveness, even as advancements occurred?
• Which risk increases when laying Roman roads across areas high in organic matter like swamps?
• Within early Chinese blast furnaces when producing cast iron, which outcome arose from insufficient charcoal quantity?