Why paul revere set up a system of signals to warn him if british is advanced?

Paul Revere set up a system of signals to warn the colonial militia of British troop movements because he recognized the imminent threat of British forces advancing towards Lexington and Concord. By using lanterns hung in the Old North Church, he could quickly convey whether the British were coming by land or sea. This system allowed him to efficiently mobilize the colonial resistance and coordinate their response to the British advance, ultimately playing a crucial role in the early stages of the American Revolution.