Which of the following was the root cause of both the Korean and Vietnam Wars?

A. Communist militaries attacked US peacekeeping forces.
B. The United Nations sought to stop the actions of aggressors.
C. The Soviet Union tried to incorporate new territories.
D. The United States feared the spread of communism in Asia.

D. The United States feared the spread of communism in Asia

Explanation:

The past doctrines from US Presidents. Hope this helps!!

the quote by walter cronkite contributes to the central idea of the text by supporting the central idea. cronkite argues that what is deemed “right” for and in america may not be good for other countries. this supports the central idea of the text, that the vietnam war was unpopular in america for multiple reasons- including cronkite’s.