The British colonial government fell in the region of Nova Scotia after several disastrous campaigns in 1757 , including a failed expedition against Louisbourg and the Siege of Fort William Henry ; this last was followed by Indians torturing and massacring their colonial victims .

The Conquest of Acadia was a foundational moment in the history of the Canadian state—it was a precursor to the British conquests of Louisbourg and Quebec in the middle of the century .