But the first ingredient, let me emphasize, is the cessation of work on missile sites on Cuba and measures to render such weapons inoperable, under effective international guarantees. The continuations of this threat, or prolonging of this discussion concerning Cuba by linking these problems to the broader questions of European and world security, would surely lead to the peace of the world. For this reason I hope we can quickly agree along the lines outlined in this letter of October 26th.
Second letter to Nikita Khrushchev, 27 October 1962