Disease.
Influenza was the viral disease that caused more deaths during WWI than combat.
Bullets and bombs
Weapons, disease, hunger, accident's, Murder, old age.
Influenza (or the flu) was the disease that killed more men during the war then combat did.
The Civil War had the most AMERICAN deaths
623,123 deaths
Mustard Gas caused the most casualties and deaths in WWI.
During the US Civil War, many deaths of soldiers on both sides died of diseases. In the South, it is estimated that 50% of Confederate soldier deaths were caused by or were related to various disease. For example, Malaria and Yellow Fever caused many deaths.
gas set off by the Germans or probably sanitation issues in the hospitals
The two most common intestinal diseases that afflicted soldiers during the American Civil War were diarrhea and dysentery. Dysentery alone was the cause of more than 95,000 of the 620,000 war deaths during the Civil War.
The total Military Deaths during World War 2 is about 25.45 Million. This is 36% out of the total deaths during World War 2. The rest were civilian deaths.
Influenza was the viral disease that caused more deaths during WWI than combat.