Congress can check the president if a 2/3 majority votes to override his veto.
B. geographical boundaries created in earlier historical periods
Syngman Rhee was the leader backed by the United States during the Korean War. Cold War conflict in which UN soliders fought to defend South Korea from takeover by Communist North Korea, ending a stalemate in 1953.
hope this helps, please mark brainliest :)
B (adding random words because I have to)