The Prince of Wales is set to visit the RAF base where Prince William previously served.

The Prince of Wales

The Prince of Wales

The 68-year-old royal is poised to take a tour of RAF Valley in Anglesey, where he will meet cadets, pilots and engineers at the site, which is where Prince William served during his time with the RAF Search and Rescue Force.

It is also where, in February 2016, Prince William and his wife, the Duchess of Cambridge, attended a ceremony that was staged to mark the closure of the UK's search and rescue helicopter force.

The Prince's planned engagement at RAF Valley will come shortly after he endured an awkward moment while greeting Spain's Queen Letizia at Clarence House.

The Prince of Wales welcomed the brunette royal and her husband King Felipe for afternoon tea at the royal residence alongside his wife, the Duchess of Cornwall, on Wednesday (12.07.17).

But unfortunately for Prince Charles, he wasn't sure whether to kiss her once or twice on the cheek.

The future King was, at one stage, seen awkwardly clutching Letizia's hand in a close embrace in which he looked to be eyeballing her.

As this was happening, Camilla and Felipe were spotted looking on in amusement.

Meanwhile, prior to the memorably awkward moment, Felipe and Letizia enjoyed lunch at Buckingham Palace and later that evening they attended a state banquet as part of their three-day visit to the UK.

The Spanish royals - who married in 2004 - were originally supposed to undertake their tour in June, but it had to be postponed after British Prime Minister Theresa May announced there would be a General Election.

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