What caused Lexington and Concord?

The battles of Lexington and Concord, which occurred on April 19, 1775, were primarily caused by rising tensions between the American colonies and British authorities. In response to colonial resistance against British taxation and governance, British General Thomas Gage ordered troops to seize colonial military supplies stored in Concord. The movement of British troops was detected by colonial militias, leading to confrontations in Lexington and Concord, which marked the beginning of armed conflict in the American Revolutionary War. The clashes symbolized the colonies' growing resolve to fight for their rights and independence.