He died in November 1930. (No exact date)
John<span> f. Kennedy replaced Eisenhower's concept of massive retaliation with a flexible response strategy.</span>
President John F. Kennedy rejected the strategy of heavy vengeance throughout the Cuban Missile Disaster in partiality of soft acknowledgment.
According to the statement "The Mongol Empire covered vast lands; the Mongols themselves were known as" and the set of options, the answer is C.
A. multiple generations of military people.
B. nomadic herdsmen with excellent equestrian skills.
C. fierce and ruthless warriors.
D. explorers seeking additional agricultural land.
