Bloodiest battle in US history

Answer 1

There are two. The first is:

Revolutionary War: Battle of Oriskany

Civil War: Battle of Antietam

There are several ways to answer this question:

If the question is "largest single-day casualties", then the answer is the Battle of Antietam in 1862 during Civil War, with 22,000 casualties (total of both sides).

If the question is "largest individual battle casualties", that would most likely be the Battle of Gettysburg in 1863 during the Civil War, with total casualties of 47,000+.

If the question is "largest campaign casualties", then the Battle of the Bulge in 1944 during WW2 would qualify, at about 90,000 total.

Finally, if the question is "highest rate of casualties in a battle", that would be the Battle of Peleliu in 1944, during WW2. It had a rate of about 30%, with just under 10,000 casualties for 28,000 men engaged.

Answer 2

The bloodiest one day battle in American History is the Battle of Antietam (Sharpsburg), Maryland, fought September 17th, 1862, during the American Civil War. Total Union and Confederate casualties were 3,654 killed, 17,292 wounded, and 1,771 captured or missing, for a total of 22,717.

Some estimates are as high as 25,000 dead or wounded Americans.

The bloodiest battle in American history is the Battle of Gettysburg, Pennsylvania, fought July 1st, 2nd, and 3rd, 1863, during the American Civil War. Total Union and Confederate casualties are 7,863 killed, 27,224 wounded, and 11,199 captured or missing, for a total of 46,286, although other reports that are commonly accepted state 51,112 total casualties.

The "Battle" of the Bulge in World War Two (89,000 United States casualties) lasted for over a month, and cannot be considered a battle, but rather a campaign.