The Civil War had the most AMERICAN deaths
The Union.
623,123 deaths
The American Civil War was the deadliest war in American History. About 620,000 individuals lost their lives during the Civil War. Confederate deaths were 260,000 of which 93,000 were killed in combat, while Union deaths were 360,000 of which 110,000 deaths were in combat. Disease was the major cause of death in the civil war. Out of 620,000 deaths, 417,000 were from diseases while 203,000 were killed in combat. In total deaths the American Civil War was the deadliest war in American History with over 620,000 fatalities. Although in combat related deaths World War II remains the deadliest conflict with 292,000 combat deaths (416,000 total). (see the related link)
north
The Civil War had the most AMERICAN deaths
the most casualties in a war was the American Civil War with 495,332 deaths and behind it is WW2 with 405,399 deaths.
The north had more deaths but had more people to force the surrender
Most experts agree somewhere between 620,000 to 700,000 deaths from the civil war.
Union Civil War CasualtiesCombat Deaths: Over 110,000Other Deaths*: Over 250,000Confederate Civil War CasualtiesCombat Deaths: Over 95,000Other Deaths*: Over 165,000(*Other Deaths include, among others: disease (by far the most common cause of death), accidents, drowning, heat stroke, suicide, murder, execution.)
The Union.
Approximately 700. I know one side had 440 deaths.
Approximately 258,000 Confederate soldiers died in the American Civil War. Most deaths were due to disease.
Overall, it is estimated that 625,000 total deaths during the US Civil War. There were 365,000 from the Union side and 260,000 from the Confederate side.
623,123 deaths
guns
Over 600,000