" Exasperation over our struggle in Vietnam should not close our eyes to the fact that we could have other missile crises in the future—different kinds, no doubt, and under different circumstances. But if we are to be successful then, if we are going to preserve our own national security, we will need friends, we will need supporters, we will need countries that believe and respect us and will follow our leadership. "

― Robert F. Kennedy , Thirteen Days: A Memoir of the Cuban Missile Crisis