The EU isn't cooperation of armies towards a common goal, or really cooperation of anything towards a common goal. The EU is "cooperation through massive centra

The EU isn't cooperation of armies towards a common goal, or really cooperation of anything towards a common goal. The EU is "cooperation through massive centralization of power under a unified command structure". Nothing decentralised about it. NATO is decentralised. We can see this clearly because of the bunfights about whether members are spending enough on their own armies to be good contributors to the alliance. Also, NATO has no political goals beyond defending its members against any attack. It's not like the EU which has an expansive ideological vision of the future.