This is easy...
Obviously with the first wish I will wish for unlimited wishes for the rest of my life.
Then I will wish for my life to never end (along with everyone else's lives)
So at this point the world is immortal.. I will have to wish for everyone to be happy and harmonous which will create a peace on earth in a voluntarist society.
(then I will use the rest of my unlimited wishes to wish for free space, and amazing living conditions for the growing population of happy immortal beings)