US won independence in a revolutionary war

The independence of the United States of America from British reign was not achieved simply by a ceremonious proclamation read from a piece of paper but, more significantly, also through a bloodily fought anti-colonial revolutionary war ( 1775-1783 ). From 1861 to 1865, the young republic also went through a civil war between its northern and southern states that were called Union and Confederacy respectively.

Happy Independence Day to American friends