No-one does pomp and pageantry quite like the British, and the annual Trooping the Colour is the perfect example of Britain doing what we do best in a military ceremonial display performed by regiments of the British and Commonwealth armies. The colours, or flags, of the regiments were used as an assembly point in battle and were carried or 'trooped' in front of the soldiers daily so that each soldier would recognise his own regiment's colours without delay.
Since 1784, Trooping the Colour has also been used to mark the official birthday of the British sovereign. Queen Elizabeth was born on 21st April, but by publicly celebrating in the summer there is - in theory - a greater chance of good weather (however as it's Britain there's always a 90% chance it'll rain). It also coincides with the publication of the Queen's Birthday Honours List. The
Queen has attended Trooping the Colour every year of her reign, except
in 1955 when a national rail strike cancelled the event.