Then why now?
Keep in mind a few things. Ursula von der leien talked recently again for a european army, more serious this time. What she wants is to administrate the money of each country for defense. Now think of this. We have a strong bigger country next to us, that is Turkyie, who is aggresive from time to time. Should we let some corrupted bureaucrats of EU that have unexcusable obsessions with Russia administrate our defense? Especially Ursula von der leien who was a failed defense minister in Germany, that gave broomsticks to soldiers instead of guns (real story, check the link below) because of mismanagement
Also no-one is threating Europe as a whole. Are we going to attack someone then? Are we going to have a european army to defend each member? And we are expecting for example Germans to fight against Turkyie to defend Greece? Are we expecting Greeks to fight with Russians or Serbians or whatever because Lithuanians and Estonians are pocking Russia?