User blog comment:IndigoOnIceCream/If the Ottoman Empire was invaded, how would it go/@comment-4207136-20120227114339/@comment-32656-20120227142429

You're over-inflating the extent of their "alliance."

And, an Ottoman presence in Italy, especially in the north, would mean the end of any French alliance, and bring the French army against them. Not that the Ottomans could penetrate that far, mind.