Khrushchev Response
Khrushchev, upon hearing about the blockade, issues a strong response to your blockade. He warns that if you do not dismantle and stop the blockade, war will be inevitable.
You must make a choice...
Listen to Khrushchev and dismantle the blockade.
You've made your point. You've shown what the United States can do and is willing to do. You have told the world that we mean business. Yet, it is not worth risking a war over. You pull the U.S. ships back and allow Soviet ships to travel to and from Cuba. Your expectation is that Khrushchev, seeing this sign of good faith, will take the missiles on the island back to the U.S.S.R. as his own sign of good faith.
You send word to Khrushchev that you've made your decision and you're sticking to it. You've told Khrushchev that the blockade will stand until he agrees to dismantle and remove the missiles. If he wants war, it's not going to be your fault. The ball is in his court.