jerryc41 wrote:
The 1917 flu probably ended WWII.
“In 1917 ... the great pandemic certainly was a terrible thing where they lost anywhere from 50 to 100 million people,” the president noted about the 1918 flu pandemic. Probably ended the Second World War, all the soldiers were sick. That was a terrible situation.”
The second world war ended in 1945.
Disease caused the most deaths of many wars. It hasn't ended any.
WW1 ended because the Germans lost. WWII ended because the Germans and Japanese lost.