My grandfather frequently spoke of the Sikh's reputation for fierceness; he was stationed in India for part of WWII, and developed a great respect for the Scots, Gurkhas and Sikhs.
Here's another painting that shows the blending of Scottish and Sikh culture:
http://www.singhtwins.co.uk/mr_singhs_india.html
Our Scottish society had a "Sikh Night" several years ago where we invited a local Sikh gentleman to come and speak about the Scottish-Sikh connection. We also ordered Indian food from the local Indian restaurant. It was a great evening.
T.
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