William H. Waldron, Terrain Exercises
“ Is the position selected a good one for defense? Is there a good field of fire? Is there cover for the enemy to conceal a formation for attack? Is the position naturally strong; if not, can it be made so? Can obstacles be so placed as to hold the enemy under effective fire of the outguard? Is there ground to the front or flanks within rifle or machine gun range that commands the position? ”
