Samuel Moyn : Opinion : WWI launched debate : can laws of war impose limits how war carried out ? After WWI , aim was to end war , but in 100 years , aim shifted to making it more 'humane , ' he says . Moyn : " The first thing that happened after the First World War is a lot of people started talking about what they wanted from their governments and society. Vietnam a low point . Since 9/11 , our wars much cleaner , lawful ; but WWI idea of 'war to end wars ' failed , he says .
Samuel Moyn : WWI launched debate : can laws of war impose limits how war carried out ? After WWI , aim was to end war , but in 100 years , aim shifted to making it more 'humane , ' he says . Moyn : " The first thing that happened after the First World War is a lot of people started talking about what they wanted from their governments and society. Vietnam a low point . Since 9/11 , our wars much cleaner , lawful ; but WWI idea of 'war to end wars ' failed , he says .