Board Thread:Questions and Answers/@comment-4923787-20121230184846/@comment-32656-20130103035040

...You've missed that the French forced them into that, and the Austrians got out of it as soon as they could. There'd be nothing of the sort.

An alliance of convenience, against a period of "left" unrest. Upkeep of that is more or less impossible, given their different goals and needs.