User blog comment:Damac1214/Where should Call of Duty go next?/@comment-68.32.83.13-20130412235956/@comment-356904-20130413132622

"no way dude a 18-21 year old soldier in WW1 could still fight in both World Wars"

Not really. If someone was eighteen in 1914 then they'd be in their forties by the time WWII rolled around. Too old to serve.