The Queen attends RAF Centenary Service at Westminster Abbey

Meghan Markle channeled the English countryside's summer verdure today at Prince Louis' royal christening.

In what was only her second public appearance since the royal wedding, the Duchess of Cambridge chose a cream-coloured Alexander McQueen dress that perfectly complemented Prince Louis's Honiton lace christening robes.

However, Meghan Markle's bespoke Dior dress appeared to cause some confusion, with many believing she'd worn a little black dress, while others insisted it was navy.

Meghan Markle opted for an olive green ensemble.

And tellingly, the Duchess stood in pride of place alongside Her Majesty who is these days usually flanked by one of her sons in the absence of the Duke of Edinburgh.

The Duchess of Sussex looked elegant and chic as she arrived at Westminster Abbey for the Royal Air Force Centenary service. "I love you, Meghan", she concludes.

The special service was in celebration of 100 years of the RAF - the world's very first independent air service.

Prince William, the Duke of Cambridge, could be seen wearing the No 1 uniform of the Royal Air Force, as well as his RAF wings in recognition that he is a qualified RAF pilot.

As well as being Britain's top defense system in air, the RAF has prevented conflicts and delivered aid in areas hit by natural disasters over the last many decades. Both princes were trained to fly helicopters.

The monarch was due to return to London on Monday before a busy schedule of events including a meeting with US President Donald Trump on Friday at her Windsor Castle home.

The family the made the short trip back to Buckingham Palace for a military ceremony followed by a flypast, which the royals viewed from the balcony of the palace. Meghan's signature face-framing tendrils were nowhere to be seen.