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      "artillery on land of any except strictly military objectives 
      in the narrowest sense of the word. Bombardment by artillery 
      on land will exclude objectives which have no strictly defined 
      military importance; in particular large urban areas situated 
      outside the battle zone. They will furthermore make every effort 
      to avoid the destruction of localities or buildings which are 
      of value to civilization. As regards to the use of naval forces, 
      including submarines, the two governments will a bide strictly 
      by the rules laid down in the submarine protocol of 1936 which 
      have been accepted by nearly all civilized nations. Further they 
      will only employ their aircraft against merchant shipping at 
      sea in conformity with the recognised rules applicable to the 
      exercise of maritime belligerent rights by warships. Finally, 
      the two allied governments reaffirm their intention to abide 
      by the terms of the Geneva Protocol of 1925 prohibiting the use 
      in war of asphyxiating or poisonous or other gases and of bacteriological 
      methods of warfare.
 
      
 
 
An enquiry will be addressed to the German Government as to 
      whether they are prepared to give an assurance to the same effect.