Dear Mr Prime Minister: I am gravely concerned by the information which I have had through Ambassador Hare from you and your Foreign Minister that the Turkish Government is contemplating a decision to intervene by military force to occupy a portion of Cyprus... Ambassador Hare has indicated that you have postponed your decision for a few hours in order to obtain my views.
It is my impression that you believe that such intervention by Turkey is permissible under the provisions of the Treaty of Guarantee of 1960. I must call your attention, however, to our understanding that the proposed intervention by Turkey would be for the purpose of effecting a form of partition on the island, a solution which is specifically excluded by the Treaty of Guarantee...
Further, Mr Prime Minister, I am concerned about the obligations of Turkey as a member of the United Nations...
I have no doubt that the general membership of the United Nations would react in the strongest terms to unilateral action by Turkey which would defy the efforts fo the United Nations and destroy any prospect that the United Nations could assist in obtaining a reasonable and peaceful settlement of this difficult problem.
I wish also, Mr Prime Minister, to call your attention to the bilateral agreement between the United States and Turkey in the field of military assistance. Under Article IV of the Agreement with Turkey of July 1947, your Government is required to obtain United States consent for the use of military assistance for purposes other than those for which such assistance was furnished..."
If the purpose of the propaganda campaign based on the murder of Nihat İlhan's children was to secure a full-scale Turkish military intervention, then I am afraid that the 'Johnson letter' put a halt to that.