The diplomatic push came after Trump shocked many in Europe by appearing to invite Russia to invade any NATO member not spending enough on its own defense.
At the very least, having a single army should allow for quicker action and less internal coordination, unless we mess up even this with some weird exceptions/conditions.
On a broader goal? Same reason the EEA was started, to reach a consolidated mass that’s capable of competing at the level of the main superpowers (US and USSR then, US and China now). Having some independence from US’ power projection, not having to rely on their war machine would let the EU pursue it’s best interests, not the ones of a foreign, albeit allied, country.
At the very least, having a single army should allow for quicker action and less internal coordination, unless we mess up even this with some weird exceptions/conditions.
On a broader goal? Same reason the EEA was started, to reach a consolidated mass that’s capable of competing at the level of the main superpowers (US and USSR then, US and China now). Having some independence from US’ power projection, not having to rely on their war machine would let the EU pursue it’s best interests, not the ones of a foreign, albeit allied, country.