1755 1756 1757 1759 1760 1763 British ambushed on way to Fort Duquesne British declare war on France French capture Fort William Henry British capture Fort Quebec British capture Montreal Treaty of Paris Using the timeline and your knowledge of U. S. History, which year marks the turning point of the French and Indian War? 1755, because this event caused the British to ally with Native American forces 1757, because this event propelled the British to strengthen their ties with their allies 1759, because this event allowed the capture of a major French colonial city 1760, because this event resulted in destruction of supply routes for French allies