German troops have very good discipline, and a far more reliable education than american troops. While certainly far from ideal, the state of the Bundeswehr is often painted worse than it is. You completely gloss over the fact that german (special) forces are in a lot of countries.

Furthermore, Germany isn't militarily threatened by any country with capabilities to invade it. France and Britain are close allies, the US kinda still is, Russia's economy is extremely reliant on Germany and the other countries around it are to small to pose a serious threat.