John F. Kennedy Quote

At our meeting in Vienna and subsequently, I expressed our readiness and desire to find, through peaceful negotiation, a solution to any and all problems that divide us. At the same time. I made clear that in view of the objectives of the ideology to which you adhere, the United States could not tolerate any action on your part which in a major way disturbed the existing over-all balance of power in the world. I stated that an attempt to force abandonment of our responsibilities and commitments in Berlin would constitute such an action and that the United States would resist with all the power at its command.

First letter to Nikita Khrushchev, 22 October 1962