:: the description clearly says. "Prisoners who died in Captivity" this is NOT equal to 'prisoners who died in one camp or another, excluding death marches and the process of surrendering as well as SS soldiers who got shot on sight'. soldiers are in captivity as soon as they are surrendered and disarmed. captivity means being a POW, not looked up in an official camp. 
 this is confusing and counter intuitive. maybe changing the description to 'Prisoners who died in POW camps' would resolve that problem.  
 http://www.oxforddictionaries.com/definition/english/captivity 
 from Latin captivitas, from captivus 'taken captive' (see captive) 
 http://www.oxforddictionaries.com/definition/english/captive?q=captive 
 a person who has been taken prisoner