If Germany is formed it's must be one of the best millitary power.
The Ottoman empire is a juggernaut but screwed on the long term, (even with a PoD from 1400) with heavy lose, however if they manage to survive until oil discoveries, it will then becoming a wealthy but corrupt nation.
British or the USA must rule the waves, (excepted if the country concerned by the PoD from the writer become the nation ruling the wave)
The Ottoman empire is a juggernaut but screwed on the long term, (even with a PoD from 1400) with heavy lose, however if they manage to survive until oil discoveries, it will then becoming a wealthy but corrupt nation.
British or the USA must rule the waves, (excepted if the country concerned by the PoD from the writer become the nation ruling the wave)