As an assurance to the Germans and other NATO allies, ACDA and the State Department drew up a memorandum on the interpretation of the NPT draft treaty. The key point was that the treaty “deals only with what is prohibited, not what is permitted.”

In the U.S. Ambassador to NATO Harlen Cleveland's notes on his meeting with Secretary Rusk, Cleveland details Rusk's thoughts about Soviet interest in the NPT. According to the Secretary, the “Soviets should have no real difficulty in finding a common interest with us in signing a treaty which enshrines [the] two self-denying provisions” of no-transfer to non-nuclear weapons states and “no relinquishment of control by the US over US warheads.”

This memorandum details an extensive conversation between representatives from the U.S. and Great Britain about President Kennedy's decision to cancel work on "Skybolt," or a surface-to-air missile that the British were invested in. The meeting was an attempt to placate a "looming crisis" in Anglo-American relations.

Conversation between John Foster Dulles and Chancellor Adenauer at a NATO meeting. Dulles learned from Adenauer that the French-West German project on nuclear weapons research would soon come to include Italy, to which Dulles expressed reservations and suggested a broader arrangement including the U.S. and the U.K.