Answer:
Truman Doctrine
Explanation:
This doctrine is named after a president of the United States that ruled in the 1940 in the United States. He presented the doctrine to the congress during a civil war in Grece in the years (1946-1947). It was about helping liberal and independt countries to avoid the ruling of comunism. They tried to interfer in Turkey and Grece so that comunism wouldn´t affect them.
