I'm guessing the mention of China and WWI. I've never heard any suggestions that China was involved in starting it.
Is that an error? I haven't read the article inside, but the headline does not seem to directly implicate China in World War I. It seems that the headline is merely comparing the Great Powers of 100 years ago to those of today. Germany was a greedy, growing dragon at that time. China is today. The US, of course, is the ultimate Good Guy and therefore beyond reproach in all wars. (That goes without saying and therefore need not be mentioned in the headline at all.) The Germano-Austro-Serbian hostilities of yesteryear might reasonably be compared to the modern Sino-Koreo-Japanese tensions of today. Imperialism and nationalism was alive and well in 1914, and so it is in 2014. Only the players are different. (except one, of course, but we're the ultimate Good Guy, so it goes without saying that the US needn't be mentioned.)
Given simfan's sartorial proclivities, I'm sure that the errors he immediately notices are things like the bimbo with the denim shirt, the profile guy's badly-knotted necktie, and the dragon's failure to properly trim his facial hair and fingernails.
