What was the first major military action of the American Revolutionary War in April 1775?

The Battles of Lexington and Concord were the first major military actions of the American Revolutionary War.

They took place on April 19, 1775, in Massachusetts. British troops marched from Boston to Concord to seize colonial military supplies, while Patriot riders and local militia spread warnings through the countryside.

The first fighting occurred at Lexington, where British regulars and colonial militiamen exchanged fire. At Concord’s Old North Bridge, colonial forces confronted British troops, and the British retreat toward Boston came under repeated attacks from local militia.

The battles transformed a political crisis into open war. The fighting also helped create the enduring phrase “the shot heard ’round the world,” although the identity of the person who fired the first shot remains uncertain.