I think he assisted in developing NATO, which helped Western Europe rebuild after the war. He created the Marshall Plan, which provided economic support for war-torn regions. He helped stop the spread of communism in Western Europe.
Causes of US failure in Vietnam include b) The United States supported corrupt leaders in Vietnam and d) Only a few US soldiers fought with honor.
One of the biggest issues of the Vietnamese war was that the United States went in because of anti-communism above all other reasons because of the Truman Doctrine. The South Vietnamese leaders were not well liked and were overall corrupt. The knowledge of this back home created a lot of public tension and actually caused soldiers to feel they weren't fighting for a good cause, or even commit war crimes as seen in the My Lai Massacre.
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Washington set up the first U.S. Cabinet as a group of individuals he trusted to give him advice and interact with his Presidency.
The initial group included Attorney General Edmund Randolph, Secretary of State Thomas Jefferson, Secretary of War Henry Knox, and Secretary of Treasury Alexander Hamilton.
The Executive Branch of the government was created to carry out and enforce federal laws.
George Washington understood the value of a checks and balances system which would prevent any one branch of the government from having too much power.
2011–2017 Syrian Civil War spillover in Lebanon Lebanon
2011– Iran–Saudi Arabia proxy conflict Saudi Arabia Iran
2013–2017 War in Iraq (2013–2017) Iraq
2015– Yemeni Civil War Yemen Saudi Arabia United Arab Emirates
We went back to "Undisturbed Isolationism". We cut ourselves off diplomatically for the most part from many European powers out of fear of being brought into another World War. America was completely and only about America.