The Duchess of Cambridge looked relaxed and happy as she smiled for the official photo with the 1st Battalion Irish Guards.
She beamed brightly as she was presented with a posy by five-year-old Isabella Stevenson, the daughter of the Regimental Sergeant Major.
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The boyfriend of the 25-year-old victim is in police custody following a manhunt in Arctic conditions of -30C.
Some dense fog is likely in the southeast, whilst brighter breaks are possible across eastern Scotland, northern England and north Wales.
When asked if he was joking or not, Mr Biden paused briefly before saying: "I’m not committing not to run. I’m not committed to anything."