That's not complacency, that's a feature. The key to peace in Europe is the unified free trade zone on one hand, but on the other it's also disarmament while relying on NATO. Besides putting territorial questions aside, one of the main requirements of joining NATO was to discontinue the draft!
The entire security failure is by design, one that has been made a long time ago when the US force was way more capable and threatening in their stance. The annexation of Crimea was in a way calling that stance a bluff, and now everybody is juggling the question of rearmament like a hot potato.
Because we were all calm when the saying was that no two countries which had McDonalds would go to war against one another - and then they did, and now we all have McDonalds but we don't have standing combat capable armies besides NATO operable specialized arms for a good reason.