I'll give you credit for thinking, even though that's a really unrealistic and far-fetched theory. I think some people might get confused over what a 'casualty' and a 'death' is. For instance, I found this site:
http://www.secondworldwar.co.uk/casualty.html
Even though it says 'casualty' in the URL, it states clearly on the bottom of the page that these figures are for the dead only.