Containment was a policy that used many strategies to prevent the spread of communism abroad. The reason such a policy was introduced was in response to a series of moves by the Soviet Union to enlarge its communist influence in countries like China, Korea, and Vietnam.
This would be Karl Marx! The most important book of his would the The Capital (Das Kapital in orginal German). <span>Socialist countries often said they're following Marxism (Or Marxism-Leninism)</span>
Providing military/navy support ?