Iraq and Afghanistan service and memorial [Getty Images]

The Duke and Duchess of Cambridge, Chancellor Philip Hammond and the Earl and Countess of Wessex attending a Military Drumhead Service on Horse Guards Parade in London, ahead of the unveiling of a national memorial honouring the Armed Forces and civilians who served their country during the Gulf War and conflicts in Iraq and Afghanistan. (Photo by Dominic Lipinski/PA Images via Getty Images)

PA Images Dominic Lipinski - PA Images