The direct causes of the American revolution include the following:
1. Colonists rights were restricted.
2. Colonists were not represented in parliament.
3. Colonists did not want England ruling from far away.
4. Colonists were frustrated with high taxation.
All these factors led to the war between the American colonists and the British. Great Britain put in place a lot of policies which did not favored the American colonists, this include the payment of tax which the American colonists violently rejected.
Usually the sharing of executive powers with other elected boards and officials. hope that helps
I am confused about your question, because neither Truman or Eisenhower were around when Vietnam was happening...
If you clarify, I might be able to answer your question
