The fourth is freedom from fear – which, translated into world terms, means a world-wide reduction of armaments to such a point and in such a thorough fashion that no nation will be in a position to commit an act of physical aggression against any neighbor – anywhere in the world.

That is no vision of a distant millennium. It is a definite basis for a kind of world attainable in our own time and generation. That kind of world is the very antithesis of the so-called new order of tyranny which the dictators seek to create with the crash of a bomb.

–Four Freedoms,
Franklin D. Roosevelt

What purpose does the second paragraph serve in the argument that it is possible to live in a world free from fear?

to explain the claim that one day everyone will enjoy the four essential freedoms
to counter the claim that a world free from fear is possible only in the far future
to provide evidence for the claim that people should commit no physical aggression