Preventing Scorched Earth Tactics

A Knight of Luxembourg rode on the back of his steed as he gazed towards the bridge in front of him. This valuable piece of infrastructure acted as the only means to cross the nearby river. It was because of this strategic importance that his liege ordered him to destroy it before the Austrian invaders could use it to cross. 

By now, news had spread to the Capital of the Duchy of Luxembourg of Berengar's invasion of the Northern German States. Rather than face the enemy in the fields which would surely result in his army's destruction, the Bastard of Luxembourg had ordered a full retreat. In doing so, he gave additional commands to destroy all valuable infrastructure to slow down the Austrian advance.