What Is the Most Deadliest Battle in American History?

The United States has been involved in many wars and battles, some of which have been more deadly than others. But what is the most deadly battle in American history? Let’s take a closer look at some of the most devastating battles fought on American soil.

The Battle of Gettysburg

One of the most well-known and deadliest battles in American history is the Battle of Gettysburg, which took place from July 1-3, 1863, during the Civil War. Over 51,000 soldiers were killed, wounded, or captured during this battle. The Union Army emerged victorious, but it came at a great cost.

The Battle of Antietam

The Battle of Antietam, also known as the Battle of Sharpsburg, was fought on September 17, 1862, during the Civil War. This battle is often considered one of the bloodiest single days in American history. Over 22,000 soldiers were killed or wounded during this battle.

The Battle of Chickamauga

The Battle of Chickamauga was fought from September 19-20, 1863, during the Civil War. It was one of the deadliest battles fought in Georgia and resulted in over 34,000 casualties.

The Battle of Normandy

Moving forward to World War II, we have the infamous Battle of Normandy. This battle began on June 6th, 1944 and lasted until August 1944.

It was a critical turning point for Allied forces as they successfully invaded German-occupied France. However, it came at an enormous cost with over 209k casualties between both sides.

The Vietnam War

The Vietnam War lasted from November 1st ,1955 to April 30th ,1975 with over two million troops involved. It was a long and brutal conflict that saw many deadly battles.

The Tet Offensive was one of the most significant battles of the war. It began on January 30th, 1968, and lasted for several months. Over 85,000 soldiers were killed or wounded during this battle.

The Battle of Iwo Jima

The Battle of Iwo Jima was fought from February 19th to March 26th, 1945, during World War II. This battle saw some of the fiercest fighting between American and Japanese forces in the Pacific theater. Over 6,800 American troops were killed in action, with an additional 19,000 wounded during this battle.


In conclusion, there have been many deadly battles fought throughout American history. These battles have shaped our nation and influenced the course of world events. While each battle had its own unique circumstances and consequences, they all share a common trait – they resulted in significant loss of life and sacrifice by those who fought for their country.

  • The Battle of Gettysburg: over 51k casualties
  • The Battle of Antietam: over 22k casualties
  • The Battle of Chickamauga: over 34k casualties
  • The Battle of Normandy: over 209k casualties
  • The Tet Offensive: over 85k casualties
  • The Battle of Iwo Jima: over 6.8k American troops killed in action

So which is the deadliest? It’s hard to say as each battle had its own unique circumstances and consequences. However, one thing is certain – we should always remember those who fought and sacrificed their lives for their country.