They can increase their military spending all they want, but it won’t mean a thing without power. They need to be putting their nuclear power plants back online quickly.
It is very expensive to restart a nuclear power plant, but it is doable. They could replace the energy equivalent of the Nordstream II pipeline.
Scholz has the advantage that he can blame his predecessor of the opposing political party for the error of shutting them down.
The earth really seems to be moving (politically) in dramatic fashion from the war in the Ukraine. It might be under real consideration.