A previously unpublished essay by a writer who served alongside Hitler in the First World War trenches reveals that the future Führer was only obeying orders when he shaped his moustache into its tightly-clipped style. He was instructed to do so in order that it would fit under the respirator masks, introduced in response to British mustard gas attacks. No one knew back then it would become a such a recognizable distinguishing feature!

More Info: www.telegraph.co.uk