You need to read further--your "once and for all" is chimerical. The Treaty of Aix-la-Chapelle, concluded October 18, 1748, ending the War of the Austrian Succession, returned to France the fortress of Louisbourg, Isle Royale (Cape Breton Island), and Nova Scotia. The English kept Halifax and Annapolis, and there certainly was constant strife thereafter as a result.
Actually, you're the one who needs to read further, in this case. Louisbourg in
Nova Scotia, not Louisbourg and
Nova Scota, was returned to France in 1748 (and recaptured by the British in 1758). In fact, the islands of Ile Royale (Cape Breton) and St. Jean (now PEI) were returned. But not
mainland Nova Scotia, where the Acadians in question were living. France surrendered its claim to mainland Nova Scotia (although not the aforementioned two islands) in 1713. Mainland Nova Scotia became British and remained so without interruption
until at least
1867 when the province of Nova Scotia entered Confederation. From 1713, the Acadians in Annapolis were British subjects and owed allegience to the British Crown. Those who swore to maintain it, at least to the point of neutrality, remained there. Those who did not were deported. All of that stands.
And, incidentally, it would have been a little bit hard for the British to, as you tell us, keep Halifax in the Treaty of Aix-la-Chapelle, "concluded October 18, 1748", since Halifax was founded in 1749
. This was to counter the influence of Louisbourg, which, as we've agreed, was
in fact given back. Had the British returned mainland Nova Scotia to the French in 1748, it's highly unlikely they would have turned around and founded a fortress there the following year, wouldn't you say?
I had simplified the narrative because the specific articles of the Treaties of Utrecht (1713) and of Aix-la-Chapelle (1748) are not likely to interest anyone.
That was kind of you, but... maybe you should
go into a little more detail next time... if only for your own sake.