George Washington served as the commander-in-chief of the Continental Army during the American Revolution. Appointed by the Second Continental Congress in 1775, he played a pivotal role in uniting the colonies against British rule and leading military campaigns throughout the war. Washington's leadership and strategic insight were crucial in key battles, such as the Siege of Boston and the decisive victory at Yorktown in 1781. His ability to inspire and rally troops, along with his commitment to the cause of independence, earned him widespread respect and popularity. After the war, Washington’s leadership helped establish the new nation, ultimately serving as its first president.