Answer:
Federalism is a mixed or compound mode of government that combines a general government (the central or "federal" government) with regional governments (provincial, state, cantonal, territorial or other sub-unit governments) in a single political system.
In one year's time, President Johnson had gained the support of the congress tosend troops to Vietnam<span>. He claimed that those </span>troops<span> were meant to stop the spread of communism. ... Though the </span>US<span> government supported him because he had prevented communist victory in the South.</span>
A Western European capitalist country