Answer: The Soviet Union had shown that it wanted to expand its area of control in Eastern Europe.
Additional detail regarding NATO:
The United States, along with Canada, joined with ten European countries in signing the North Atlantic Treaty in 1949. This created the North Atlantic Treaty Organization (NATO), which was a defensive military alliance of democratic states over against the expanding threat of communism felt in the Cold War environment.
The ten original Western European members of NATO were the United Kingdom, France, Belgium, the Netherlands, Denmark, Norway, Portugal, Italy, Iceland, and Luxembourg.
It should be both but in equal and balance way that the resources can replenish and used in the future generations. Protecting the resources enables the source to replenish and regain what are lost. Using and extracting enables the society to work and survive. So both are needed to be balanced to work efficiently and effectively.
1) There would be a gradual withdrawal of American troops from South Vietnam.
2) The South Vietnamese would take greater responsibility for the fighting.
Political machines started as grass roots organizations to gain the patronage needed to win the modern election. Having strong patronage, these "clubs" were the main driving force in gaining and getting out the "straight party vote" in the election districts.
