The report is absolutely scathing. Some choice quotes:
But when the next crisis came, both the US and the governments of Europe fell back on old models of alliance leadership. Europe, as EU high representative for foreign affairs Josep Borrell loudly lamented prior to Russia’s invasion, is not really at the table when it comes to dealing with the Russia-Ukraine crisis. It has instead embarked on a process of vassalisation.
But “alone” had a very specific meaning for Scholz. He was unwilling to send Leopard 2 tanks to Ukraine unless the US also sent its own main battle tank, the M1 Abrams. It was not enough that other partners would send tanks or that the US might send other weapons. Like a scared child in a room full of strangers, Germany felt alone if Uncle Sam was not holding its hand.
Europeans’ lack of agency in the Russia-Ukraine crisis stems from this growing power imbalance in the Western alliance. Under the Biden administration, the US has become ever more willing to exercise this growing influence.
But it is more than that. A lot of EU nations don't have a military of a size capable of more than just basic infantry. This has been a problem for NATO as the US has created a lot of the logistics and specialty platforms required to fight a modern war that a lot of other nations don't pay into.
The EU is already seeing the merging of several military units because it is cheaper to develop them at scale. At that point, why not just have all of the EU create and manage the joint arms at a level where it makes more sense?