Question

kennedy opened which of the following with the soviet union?
a hotline for communication
international shipping lanes
a gate in the berlin wall

Explanation:

After the Cuban Missile Crisis, to improve communication and reduce the risk of accidental nuclear war, President John F. Kennedy and the Soviet Union established a hot - line for communication. There were no international shipping lanes or gates in the Berlin Wall opened by Kennedy with the Soviet Union in this context.

Answer:

a hotline for communication