Which name was given to the US policy of giving military aid to countries to help the stop the spred of communism

The segments shown below could form a triangle.

The north was victorious in the battle of bull run true or false

The devahrime system was created in order to : a. promote the expansion of sikhism in the ottoman empire b. illuminate the influence of christianity in the ottoman empire c. create trade relationships between the ottoman and mughal empires d. provide the ottoman empire with trained professional soldiers