The Boston Patriots had been preparing for such a military action by the British for some time, and upon learning of the British plan, Patriots Paul Revere and William Dawes were ordered to set out to rouse the militiamen and warn Adams and Hancock. When the British troops arrived at Lexington, Adams, Hancock, and Revere had already fled to Philadelphia, and a group of militiamen were waiting. The Patriots were routed within minutes, but warfare had begun, leading to calls to arms across the Massachusetts countryside.
When the British troops reached Concord at about 7 a.m., they found themselves encircled by hundreds of armed Patriots. They managed to destroy the military supplies the Americans had collected but were soon advanced against by a gang of minutemen, who inflicted numerous casualties. Lieutenant Colonel Frances Smith, the overall commander of the British force, ordered his men to return to Boston without directly engaging the Americans. As the British retraced their 16-mile journey, their lines were constantly beset by Patriot marksmen firing at them Indian-style from behind trees, rocks, and stone walls. At Lexington, Captain Parker’s militia had its revenge, killing several British soldiers as the Red Coats hastily marched through his town. By the time the British finally reached the safety of Boston, nearly 300 British soldiers had been killed, wounded, or were missing in action. The Patriots suffered fewer than 100 casualties.
The battles of Lexington and Concord were the first battles of the American Revolution, a conflict that would escalate from a colonial uprising into a world war that, seven years later, would give birth to the independent United States of America.