London, UK. 10th June, 2016. Armed City of London police officers patrol with guns before the National Service of Thanksgiving at St. Paul's Cathedral to commemorate HM Queen Elizabeth II 90th birthday. Credit: Paul Marriott/Alamy Live News

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Photo credit: © Paul Marriott / Alamy / Afripics
License: Licensed
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Keywords: ., , london, national, service, thanksgiving, uk