Complex sentence: After the French conquered Saint John's, Newfoundland in June 1762, the success galvanized both the Acadians and the natives, who gathered in large numbers at various points throughout the province and behaved in a confident and according to the British, "insolent fashion".
Split into simpler sentences: After the French conquered Saint John's, Newfoundland in June 1762, the success galvanized both the Acadians and Natives. They began gathering in large numbers at various points throughout the province and behaving in a confident and, according to the British, "insolent fashion".