The eisenhower doctrine warned the soviet union that the u. s. would not tolerate communist expansion into

The Middle East

Explanation:

In the aftermath of the Suez Crisis, Eisenhower decided that the United States must replace Great Britain and France as the guarantor of Western interests in the Middle East. In 1958, Congress approved what came to be called the Eisenhower Doctrine, a resolution that promised to extend economic and military aid to Arab nations and to use armed force if necessary to assist any such nation against Communist aggression.

the lowest among the social higher rank were the working class. this class remained detached to the political progression   of the country and was hostile to the other two classes

cuba is a multi-ethnic nation