It is literally insane for Germany to attack Austria instead of peacefully annexing it. The only reason Austria did not
immediately chose ''Anchluss'', incorporation into Germany , the then-much larger bordering state with whom it still shares both language and culture, immediately following their defeat in World War I was because it was expressly forbidden to do so by the Treaty of Versailles. The moment Germany abrogated the treaty, the ''Anchluss'' became its primary foreign affairs concern until it was achieved, a concern shared by a majority of the Austrians themselves. As such, war with Austria, when it can be taken for free by automatic chronological event, simply wastes men, materiel and vital time.