According to creel, how did this war differ from all previous conflicts?

George Creel was a mid-western journalist who was made the head of an independent agency of the United States known as Commission on Public Information which was formed to influence the public opinion in favor of the First World War. " How this war differs from all previous war" this topic was central to the propaganda used to influence public opinion. the War was portrayed as not only between army but ideals. The life of trenches was glorified, Veterans became heroes and the battle was considered to serve mankind.