Over the course of the passage, the main focus shifts from

1. a description of the history of the united states to
a proposal for improving the lives of its citizens.
2.a commitment to allies of the united
states to a call for better cooperation among
opposing nations.
in his mortal
verty and all
ary beliefs for
d the globe. let
end and foe
neration of
rar, disciplined
heritage, and
of those human
mitted, and to
und the world.
e ranks of the
ial control shall

3.an argument for improving the lives of people
around the world to a recognition of that
argument's weaknesses.

4.an explanation of the foreign policies of the
united states to an example illustrating these
policies