<span>Francis Marion used guerilla-style tactics to cut British supply lines and slow down the British Army. Because the British troops never knew when or where Marion and his forces would strike, they could form no battle plans and were forced to withdraw from South Carolina.</span>
They got it from india. hope this helps :3
Answer:
The first reason is because the German blockades of British waters. And the second reason is because Germans destroying passenger ships, and in turn, killing civilians.