To mark the second of the Queen's two birthdays (this is the official one, her actual birthday is on 21st April), Trooping the Colour presents a colourful display of ceremony and military history. It's a spectacular piece of pageantry but also a timely reminder of the role of the armed forces who are - in theory at least - under the Queen's control. Hundreds of well-disciplined soldiers in full dress uniform march past, and a different Battalion gives the Royal Salute each year, all accompanied by stirring military music from the massed bands. If you want to avoid the crush you can see the Horse Guards practicing for the grand parade at two smaller rehearsals in the days leading up to the grand event (dates to be confirmed).