What were the war aims of the major participants in WWII?

Generally speaking, the war aims of the Axis countries
were quite similar to one another and the war aims of all the Allied countries were
similar to one another.  Therefore, I will discuss the Axis and Allies, respectively, as
if each were one country.

The Axis countries wanted to gain
more land.  All of the countries of the Axis felt that they deserved and needed more
territory so that they could have more space to live in and so they could have more
resources to use to enrich themselves.  They felt that they deserved empires like those
held by the Allied powers.  It was generally for this reason that they started the
war.

The Allied powers were really just trying to prevent
the Axis from winning.  The Allies did not aim to take any territory for themselves. 
Instead, they were simply fighting to defend themselves and to push the Axis powers back
to where all they had was their home countries.

For the
Axis, then, this was an aggressive war meant to take territory.  For the Allies, it was
a defensive war meant to restore the status quo as it had been before the Axis countries
started trying to expand in the 1930s.