Answer:
These all used economic aid to survive.
Explanation:
SEATO: (Southeast Asia Treaty Organization) was an international organization for collective defense in Southeast of Asia.
Marshall Plan: It was also called European Recovery Program. It was a U.S. program to providing aid to Western Europe following the devastation of WWII.
United Nations: It was created in 1945 with a multipurpose international organization to save succeeding generation from the scourge of war and to reaffirm faith in fundamental human rights.
NATO: It is an organization formed in washington D.C. for the purpose of collective defense against aggression.
