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So, visitors to Buckingham Palace, the queen's London residence, shouldn't be surprised to see the two blue-turbaned soldiers going about their duties.
In fact, Signaler Singh is the first Sikh ever to wear his turban on public duties protecting the queen and the crown jewels, says UK paper The Daily Mail.
He was posted at Buckingham Palace in May and was later joined by the lance corporal.
The soldiers serve with 21st Signal Regiment based in Wiltshire, while Lance Corporal serves with 3rd Regiment Army Air Corps based in Suffolk, respectively.