Erect Wall for Military Training

President Trump can build a wall as a military training activity.   In a combat area concrete walls  may be needed as  part of a bunker to protect personnel or supplies. A wall can protect  buildings from a truck bomb on a nearby road.  Thus military personnel need to know how to construct concrete walls  The southwestern states provide a good location to train personnel to construct concrete walls in the Middle East because it has  a relatively close  match in terrain, climate and  soil. Training benefits  would include practice in moving personnel, equipment and supplies  into an area and learning how to operate in that type physical environment.