The American Revolutionary War (1775-1783) was fought between the British colonies in America and Great Britain. The colonists fought for their independence from British rule and established the United States of America as a sovereign nation.
The Civil War (1861-1865) was a civil conflict fought between the northern and southern states of the United States. The main cause of the war was the issue of slavery, as the northern states were opposed to slavery while the southern states supported it. The Civil War resulted in the preservation of the Union and the abolition of slavery in the United States.