Truman adopted a policy of containment, in which the U.S. would attempt to prevent the spread of Communism but would not actively seek to regain territory already lost to Communism. He also announced the Truman Doctrine, a policy of aiding countries in danger of falling to Communism.
Checks and balances is something where each branch has certain limitations so neither branch can become over powered hope this helps and have a wonderful day :)
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cant understand if theres a question