Answer:
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
. True it was used to kill people
Constantinople since it is the heart of the empire.
