I am currently doing research on Sikhs in WW1, and Sikh soldiers who fought for or against the British more generally. I have been spending a lot of time examining photographs from this time period. One image that has been recurring is the adoption of Sikh attire, in particular the turban/pagri by non-Indians. For example, there was a famous warrior who fought against the Sikhs in the Sepoy mutiny, Sir Dighton Probyn, who famously sported Indian dress in battle and when posing for a painting of himself. There was also Alexander Gardner, a soldier in Maharajah Ranjit Singh's army. Why do you think they might have taken this on? I think it certainly has to do with orientalism and the fearsome reputation of the Sikhs as representatives of a martial race. Has anyone come across any research in this area?