Which of the following conflict was not part of proxy wars fought between the us and soviet union during the cold war (a. cuban conflict b. korean conflict c. iran conflict d. vietman conflict e. afghanistan conflict)

you didn't list the options. however, a few communist countries today are: the people's republic of china, north korea, and cuba.

the national congress's powers over the states were specific and definite: it had the sole power to negotiate treaties, declare war, and make peace. all powers not granted to congress were reserved for state governments. congress had no power to levy taxes, for example.