The correct answer is Cold War policy that meant the U.S. would go to the brink of war if they or their interests were attacked by the Soviet Union
Brinkmanship is where we give up all the negotiation effort and advance on the opponent forcing him to retreat. In the chiken game, in which both participants advance the car towards each other at full speed, one of the players removes the car's direction and throws it away, showing everyone what he has done, thereby forcing the other player to detour rationally to save your life. The brinkmanship strategy was used by Bob Kennedy in the Cuban missile crisis with complete success.