Taylor forwarded to McNamara the views of USCINCEUR, CINCLANT, and the DSTP on targeting and submarine deployment issues. According to CINCLANT Admiral Dennison, it was feasible to deploy up to three Polaris submarines in the Mediterranean. They could regain the same “operating efficiency” that they had achieved in their previous Norwegian Sea deployment. In Lemnitzer’s absence, General Lauris Norstad, who was departing as CINCEUR, opposed the withdrawal of the Jupiters as “weakening our nuclear capability” by reducing target coverage and by “destroying” the Jupiter’s “psychological” impact. DSTP General Power was also concerned about target coverage but did not foresee “basic problems as long as Free World missiles are targeted as an integrated package.”

Following the Italian Government’s acceptance of the Jupiter-Polaris arrangement, Defense Minister Andreotti answered Secretary of Defense McNamara’s January 5 letter. He declared that he was ready to begin “mutual consultations” to reach “specific agreements” on removing the Jupiters and said that he would await further guidance from McNamara.

In the morning, Fanfani met with his advisers, and they agreed to accept the Jupiter-Polaris arrangement. He then met with Kennedy for a series of conversations on East-West issues and the developing countries. During their private meeting, Fanfani conveyed to Kennedy the conditions for the agreement—Polaris submarines would not be based in Italy, and Italy would be a participant in the MLF and a member of the NATO committee establishing it. As he noted in his diary, Fanfani asked that language referring to “bases in the Mediterranean” (“which could lead one to suppose they are in Italy”) be removed from the “minute of understanding” of the meeting. Kennedy accepted the stipulations, and a memorandum of their understanding was prepared.

During the luncheon for Fanfani, Bundy sent Rusk this short memo about the Fanfani-Kennedy conversation, noting the former’s concern that removing the Jupiters could lead to attacks from the right about “softness toward left-wingers who want the missiles out.” When Kennedy spoke with McNamara after the meeting, he asked him to emphasize to Fanfani the military advantages of replacing the Jupiters with Polaris. McNamara wanted to emphasize that very point to offset any talk of a “nefarious Cuban bargain” with the Soviets. Bundy also highlighted the debate between George Ball and McNamara over whether Jupiters and Polaris should be mentioned in the communique on the Fanfani-Kennedy discussions.

Fanfani covered the events of the day in this journal entry, noting that he told Kennedy he would make no commitment on the Jupiter-Polaris replacement until he spoke with McNamara. With McNamara, Fanfani emphasized the point about using the Jupiter base for space launches. Both Kennedy and McNamara denied that there was a trade with the USSR, with McNamara emphasizing the risks posed by the Jupiters during the Missile Crisis.

Members of the Nassau Decisions Steering Group worked up the texts of letters from Secretary of Defense Robert McNamara to the Italian and Turkish Defense Ministers, which President Kennedy approved when he met with Dean Rusk and Thomas Finletter in Palm Beach on January 5, 1963. The State Department sent the letters later to Ankara and Rome later that day.

McNamara’s letters expand on the points about the need to replace Jupiters with Polaris missiles that he made to Andreotti and Sancar when he met them in Paris. To both, McNamara wrote that the Polaris force would be “on station” by April 1 as the replacement for the Jupiters. Writing to Andreotti, he also mentioned substituting “obsolete” Corporal with Sergeant missiles. In his message to Sancar, McNamara informed him that he is exploring the possibility of accelerated delivery of the F-104s and that “emergency actions” could make it possible to deliver the first squadron during April 1963.

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.