Sprigs of shamrock and a march-past were just the beginning of this action-packed day.
And let's not forget the visit to the junior ranks' dining hall and the official photograph to wrap things up.
She recently visited the 1st Battalion Irish Guards, learning about their wartime efforts and anti-poaching and anti-landmine efforts.
It seems the Royal Family has a thing for guards, as the King made Kate Colonel of the Irish Guards, and Prince Charles and Queen Camilla colonels of other guard battalions.
With all these impressive roles and efforts, it's no wonder Kate is taking the world by storm.
Who knows what the future holds for this dynamic Duchess, but we can't wait to find out!