Paul Revere was tasked with warning Samuel Adams and John Hancock that British troops were marching to capture them. He rode through the night, quietly warning patriots of the impending attack. When spotted by British soldiers, he was detained but later released. His ride helped spark the battles of Lexington and Concord, where minutemen engaged the British troops in the first armed conflicts of the Revolutionary War. This marked the start of open warfare between British troops and the American colonies.