After the Cuban Missile Crisis, what machine allowed for better communication between the U.S. president and the premier of the Soviet Union?

Question

a personal computer
a cell phone
a television
telegraph machine

Answer 1

After the Cuban Missile Crisis, the communication tool that allowed for better communication between the U.S. president and the premier of the Soviet Union was the telegraph machine. This led to the establishment of a direct communication link known as the "Hotline" to prevent misunderstandings during times of crisis.