Complex sentence: The lucrative eastern fur trade faltered with the general unrest as French and English hostilities concentrated in the region between Québec and Port-Royal, and as increasing sporadic fighting and raiding took place on the lower Saint John River.
Split into simpler sentences: The lucrative eastern fur trade faltered with the general unrest, as French and English hostilities concentrated in the region between Québec and Port-Royal. Increasing sporadic fighting and raiding also took place on the lower Saint John River.