Really; these countries are dying from within - what external enemy would they defend against?
Russia, maybe? No, that's not it. Russia would have to go through Belarus or the Ukraine first, and then through Poland. That's too tough, especially the Poland part.
I'll bet France and Germany are arming up against the Duchy of Grand Fenwick. Every 50 years or so the Fenwickian army gets a little rambunctious.
They have invited their external enemies in to take over but avoid all the dirty and bloody unpleasantness of a fighting war. It makes little sense for them to talk of mutual defense now, when the enemy is already dispersed throughout their countries.
That’s the whole problem, which is their fifth column from within weakening them much the same way our libtards are weakening us from within. When I read the headline to this article my first thought is what does the average (yellow vest)Frenchman think about this idea?
Back to your question, Germany does not have a military capable of defending their own country against a potential foe such as Russia. Germany is NATO dependent.
It is all about internal enemies. To crush opposition of one EU-state solution pushed by neo-Marxist elites. They are desperate because a wave of counter-revolution is coming.