Kingdom would at once come to the help of Poland;
 
      
 
 
c. Poland reciprocally gives corresponding assurances to the 
      United Kingdom;
 
      
 
 
d. It is understood that the Polish Government and His Majesty's 
      Government in the United Kingdom will keep each other fully and 
      promptly informed of any developments threatening the independence 
      of either country.
 
      
 
 
3.As an earnest of their intention to enter into a formal 
      agreement to render assistance to Poland in the circumstances 
      contemplated above His Majesty's Government in the United Kingdom 
      have informed the Polish Government and have stated publicly 
      that during the period required for the conclusion of the formal 
      agreement outlined in paragraph 2 above in the event of any action 
      which clearly threatened Polish independence and which the Polish 
      Government accordingly considered it vital to resist with their 
      national forces, His Majesty's Government in the United Kingdom 
      would feel themselves bound at once to lend the Polish Government 
      all support in their power.
 
      
 
 
4.The Polish Government for their part give His Majesty's 
      Government in the United Kingdom a reciprocal undertaking to 
      the same effect which is, in the same way as the undertaking 
      given by His Majesty's Government, already in force and will 
      remain in force during the period required for the conclusion 
      of the formal agreement outlined in paragraph 2 above.