"Then to my amazement I saw that the surgeon, who I knew had served in the Civil War, attending the wounded... from the Wilderness to Appomattox, began to grow pale..."
(Paragraph 29). How does quote contribute to the development of ideas in the text?

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation:

oh i never knew that

explanation:

the speech convinced americans that the ussr was an enemy, rather than an ally, which led to the creation of the truman doctrine.