The President of the US, the First Lady, King Charles, Queen Camilla, Prince William and Princess Kate are participating in a carriage procession through the Windsor estate, escorted by the Household Cavalry Mounted Regiment.
The route is lined by Armed Forces personnel from the Walled Garden to George IV Gate and as the procession took off, the US and British National Anthems were played.
King Charles and Donald Trump are travelling in the Irish State Coach. The First Lady of the United States has been joined by Queen Camilla in the Scottish State Coach.
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