If you are referring to World War II, Australia, Canada, New Zealand, South Africa and the United States suffered the fewest civilian casualties because they are all so far from the main area of the fighting and in general were spared the bombing of civilians by enemy aircraft.
1861, the un-declared US Civil War, officially called the "War of the Rebellion", and also known as the "War between the states."
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D-Day
the civil warAnother Answer:The deadliest battle on US Soil was Gettysburg. Other battles had more casualties or made more men unfit to fight, but Gettysburg put more in the grave.
Battle of the Argonne Forest
We were fighting ourselves during the US Civil War (1861-1865), so that may have been the deadliest.
Deadliest battle America has been involved in to date was the Battle of Meuse-Argonne in WWI (26,277 deaths) Deadliest battle on American soil was Gettysburg in US Civil War (7,863)
The us because on deadliest warrior they proved it. Israeli Commandos lost like nothing.
What made the Civil War one of the deadliest in American history, was everyone in it was an American.
New York.
Look at the casualty figures for each battle. Try Wikipedia's list of Civil War battles.
The deadliest hurricane to hit the U.S. was the Galveston, Texas hurricane of 1900. The storm destroyed the city of Galveston, killing at least 8,000 people, possibly as many as 12,000.
Deadliest day according to at least one website is, July 4th
No, the deadliest battle of the Civil War was that of Gettysburg.
There can be no doubt that the most deadliest weapon of world war 2 was the nuclear bombs that dropped on Hiroshima.
1861, the un-declared US Civil War, officially called the "War of the Rebellion", and also known as the "War between the states."
yellowstone park is in fact the deadliest volcano in the U.S