The US Military came about on June 14, 1775, during the American Revolution with our first formal fighting force, the Continental Army. The Revolution was fought from 1775-1783, with George Washington in command. There were many important battles during the revolution that would shape our nation and the military. The war began with “the shot heard round the world” at the Battles of Lexington and Concord. With the conclusion of the war and the Treaty of Paris, the United States of America won its independence from Great Britain.

https://www.military.com/history