The Civil War lasted from April 12, 1861 – May 9, 1865. It claimed hundreds of thousands of lives from both the Union Army of the northern states and the Confederate Army of the South. It’s considered to be the bloodiest war on American soil and led to the end of slavery in the United States.

Although this war took place over 150 years ago, there are photos of battles, soldiers, and the aftermath.

Check out these 20 eye-opening battlefield photos from the Civil War and be sure to share it with a friend.