A primary source is better than a secondary source because you know that it is absolutely true and that all aspects of the source are true.
Answer: A large British force was cut off by American and French troops by land and by a French fleet by sea.
Explanation: I studied it
The truman doctrine offered aid to any country threatened by communism. SO any government that was liable to turn to communism the truman doctrine aided those countries so that those countries might instead turn to democracy.