In a dramatic speech to a joint session of Congress, President Harry S. Truman asks for U.S. assistance for Greece and Turkey to forestall communist domination of the two nations. Historians have often cited Truman's address, which came to be known as the Truman Doctrine, as the official declaration of the Cold War.
Explanation: umm i tried my best to explain it um hope you understand this XD
Answer:because when someone has too much power they become unstoppable which is why power has to be spread across multiple people and its Too much pressure on just one person.
