Which risk increased for Roman legions during winter campaigns on roads beyond fixed fortifications?

💡 Explanation

During winter, heavy rains turned unpaved roads into muddy quagmires; the increased drag force impeded carts as soil-water interactions degraded road's load-bearing capacity, lengthening supply lines. Therefore mud slowed logistical movements contributing to the chance of food shortages and disruption, rather than collapse, desertion, or failure related to ice rain or heat issues.

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