The Duchess of Cambridge looked at ease as she carried out her first solo military engagement, visiting the 1st Battalion Irish Guards.
Having presented members of the battalion with sprigs of shamrock at their St Patrick's Day parade, Kate was photographed with 100 Sergeants and then with 40 Officers.
Before heading off for a private lunch with officers at the barracks, Kate visited the Junior Ranks Mess Hall where Guardsmen and Lance Corporals cheered and toasted her with cans of lager and small glasses of Irish sherry.
One soldier said: "Your Royal Highness. On behalf of the 1st Battalion Irish Guards we welcome you and wish you a Happy St Patrick's Day.
"We also thank you for the shamrocks that you have presented to us."