I'm not a history expert, but I seem to recall something like this. Since Germany was just gaining strength and had recently become a militarized state, it needed an opponent. Russia was a good fit for this role because it had recently experienced several revolutions and was experiencing significant class divisions. So, the situation in Russia, unlike in Germany, was extremely unstable. It's unlikely that the Germans would have missed such an opportunity. Of course, there may have been other reasons.
I didn't look it up in an encyclopedia, so the information may not be accurate. It's best to listen to someone more knowledgeable, but if no one else responds, try to develop this idea further.
So you fall at his feet hes the one who betrays you
Its the servants devotion for the decay
Stand up
There are no flowers on your grave
There are no chains
There I keep chanting for the forgotten name © Amorphis