Ais land that is surrendered or given over to the control of another country, usually by treaty.

Surrender is probably the word you are looking for; although there are synonyms that could work just as well.

d

explanation:

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.