Morning all.
With a POD no earlier than the end of the War of the Second Coalition in 1802, set it up so that Germany is still divided in 2019. For purposes of this challenge Germany can't have unified at all. Having a united Germany permanently broken up later (a la the end of "Anglo-American Nazi War") does not count. Germany can never have formed in the first place.
You can have as many or as few minor entities as you'd like, but instead of one nation of Germany there should be at least a few nations where OTL Germany is now.
Strictly speaking, as Austria was considered part of Germany at the time, Germany never really became totally United. But that aside, With a POD in 1802 it should be fairly easy. Just make sure that France remains as powerful as possible. Probably Napoleon dying before he goes too far to provoke his neighbours might help.