Which outcome arose with the presence of Roman caltrops strategically placed on roads?

💡 Explanation

When caltrops are deployed on roads, the sharp spikes invariably puncture the hooves of horses because the tetrahedral shape ensures one spike always points upwards, reducing enemy cavalries' maneuverability. Therefore, reduced maneuverability for enemy cavalry resulted, rather than improvements for legionnaires, drainage, or trade, because those systems require flat surfaces, designed flows, or established cooperation.

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