For our edification from The Message Bible:
Deuteronomy 20:19 -20 When you mount an attack on a town and the siege goes on a long time, don't start cutting down the trees, swinging your axes against them. Those trees are your future food; don't cut them down. Are trees soldiers who come against you with weapons? The exception can be those trees which don't produce food; you can chop them down and use the timbers to build siege engines against the town that is resisting you until it falls.
Let the reader use discernment.
Sylvia