Perkeo
Banned
Another idea might be Germany keeping the one or more of the following treaties:
League of the Three Emperors - it lapsed in 1887
Reinsurance Treaty - when it lapsed in 1890, France signed a Treaty with Russia
Treaty of Björkö - Secret mutual defense treaty between the German Empire and Russia. Didn't mean much since the Franco-Russian Alliance treaty had been signed earlier, and the Russians said it would require French approval before they could honor it.
IMHO the failure to keep those treaties is THE strategic mistake of 1871-1914 Germany. Keeping them would have solved ALL of Germany's problems. If that would've meant breaking up with Austria, all the better. If France is fool enough to interfer when Germany, Russia and Italy go for the Habsburg Empire, we could well see what the OP demands.
I honestly don't know why the German leadership was so foolish not to do exactly that IOTL.