21. The Tet Offensive was a strategic blow for the U.S because it showed the communists did not lose the will to fight. Therefore the answer is B. The offensive was a surprise attack and was large in numbers.
For 22. Presidents Truman, Eisenhower, Kennedy, Johnson and Nixon oversaw the conflict. Therefore the answer is C. Dwight E. Eisenhower was never a president.
The main form of government is Bureaucracy.
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