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← HistoryWhich defensive failure would be amplified by a Roman fort’s reliance on a glacis?
A)Compromised drainage during heavy rains
B)Reduced ballistic advantage projectile range
C)Decreased visibility of approaching troops
D)Increased vulnerability to undermining tunnels✓
💡 Explanation
Undermining becomes a greater risk, because the compaction of earth used in the glacis provides stable soil to tunnel through; therefore, undermining has a greater effect, rather than direct assault or projectile attacks, especially given Roman siege warfare preferences.
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