The Queen and the Duke of Edinburgh will formally greet the president of the United Arab Emirates (UAE) as he begins a two-day state visit today.
Sheikh Khalifa bin Zayed Al Nahyan's visit comes at a fragile diplomatic moment after three British men, who allege they were tortured by police, were sentenced by a court in Dubai on Monday.
The president will join the royal couple for a state carriage procession to Windsor Castle before reviewing a Guard of Honour with the Duke. The Queen will also host a lunch in his honour.
Three British men jailed in Dubai claimed they were tortured by police. Here are three other cases of Brits subjected to torture abroad.
Three British men from East London have been given four year jail sentences for drug offences by a court in Dubai this morning.
Three British men who were allegedly tortured by police while on holiday in Dubai are due to hear the verdicts in their drugs trial.