Both Prussia and Austria made their names outside of the historically German lands and ruled over non-Germans. It was in the end Prussia that unified Germany i

Both Prussia and Austria made their names outside of the historically German lands and ruled over non-Germans. It was in the end Prussia that unified Germany in 1871 having previously defeated Austria. Both settlements following WWs 1 and 2 forbade Germany from unifying with Austria. And now in any case there is no appetite for it regardless of legality.