On March 22, 1963, through an exchange of notes, the U.S. and Italy confirmed the final agreement on the dismantling of the Jupiter missiles and their replacement with patrols of Polaris submarines assigned to the Supreme Allied Commander Europe. The Polaris patrols would begin on April 1, 1963, and the dismantling operation would occur during the next 25 days.

To bring NATO officially on board, the State Department sent this draft paper to U.S. ambassadors in Italy, NATO, and Turkey for use with the North Atlantic Council and with SACEUR. Just as the three governments had informed the Council of the Jupiter deployment plans in the late 1950s, they would brief the NAC on the purposes of the Jupiter-Polaris arrangement and its military implications, including retargeting requirements for the “timely damage” of Allied Command Europe targets.

This urgent message “of the highest sensitivity” from the Joint Chiefs to top commanders began with a misrepresentation of President Kennedy’s decision: “serious consideration [is] being given to withdrawal of JUPITERS from Italy and Turkey.” The recipients—General Lyman Lemnitzer [CINCEUR], Admiral Robert Dennison [CINCLANT], and General Thomas Power [DSTP]—were to assume that Italy and Turkey had agreed to the decision, that withdrawal of the Jupiters would occur by April 1, 1963, and that Polaris submarines would be in the Mediterranean by that date. Both USCINCEUR and DSTP, who directed work on the SIOP, were to consider retargeting requirements once the Jupiters went offline. CINCLANT was to consider the feasibility of deploying one, two, or three submarines.

That the Commander of U.S. European Command (CINCEUR), Gen. Lyman Lemnitzer, was a critic of the Jupiter removals may have informed a Joint Chiefs of Staff decision to send him a background paper explaining U.S. decisions that could also be used for discussions within NATO.   The backgrounder provided information comparing the reliability, vulnerability, and survivability, among other features, of the Jupiter and Polaris missiles. While the withdrawal of Thor and Jupiter missiles reduced Western “nuclear potential,” those reductions would be offset by an increase from 350 to about 800 U.S. strategic ballistic missiles, “some of which will be assigned to NATO targets.” Further, it “may be assumed that there will be no reduction in the present expectation of timely damage to the ACE [Allied Command Europe] targets presently covered by the Jupiters.”

In a meeting with Italian Defense Minister Guilio Andreotti, McNamara had several matters to raise, but soon brought up the Jupiters and the need to “substitute something more responsive and less vulnerable to sabotage or direct attack.” When Andreotti raised the possibility of a naval deployment, McNamara agreed, suggesting assigning Polaris submarines to SACEUR (Supreme Allied Commander Europe), “with an Italian role in the targeting.” Suggesting that the U.S take the initiative on the matter, Andreotti preferred that it be settled before the spring 1963 elections.

Seymour Weiss would push back against any efforts to remove the Jupiters, but he and others realized that President Kennedy had a “keen interest” in the matter and that Secretary of Defense McNamara had ordered that action be taken (assigning his General Counsel John McNaughton to take the lead). Nevertheless Weiss and Assistant Secretary of State William Tyler presented Secretary of State Rusk with a memorandum making the case against action on the Jupiters or at least postponing their removal until a “later time.” Paralleling arguments made during the crisis by Ambassadors Hare and Reinhardt, Tyler pointed to the “symbolic and psychological importance” of the Jupiter deployments. While Tyler noted parenthetically that the Italians had “given indications of a disposition to work toward the eventual removal of the Jupiters,” the U.S. could not phase them out “without general Alliance agreement,” including Italy and Turkey’s consent, “unless we are prepared to lay ourselves open to the charge of abrogation of specific or implied agreements.” Rusk was in the know on the secret deal, but his reference to a “later time” was consistent with it and signing the memo would have placated Tyler and Weiss.

Concerns about the credibility of US nuclear deterrence generated Supreme Allied Commander Europe (SACEUR) General Lauris Norstad’s proposal for a NATO-controlled medium-range ballistic missile (MRBM) force. This lengthy report represented INR’s assessment of “present and future European interest in national or multinational nuclear weapons capabilities,” including the MRBM proposal, and the extent to which an “enhancement of NATO's nuclear role” could “deter national or multinational European nuclear weapons programs.”

Churchill, Eden, Stalin, and Molotov discuss the leadership in Poland, Britains interests in Greece and Hong Kong, the actions of Romania and Bulgaria during the war, Turkey, the need for the Great Powers to exert influence on the Balkans to prevent small wars, the leadership of Italy, interests in Bulgaria and Romania, the dividing of Germany and Germany's future, and the American plans in the war against Japan.