Prince William carries out the Colonel’s Review of the Irish Guards near Buckingham Palace in London, as part of final preparations for next week’s Queen’s Birthday Parade (Trooping the Colour). Trooping the Colour will take place on June 2nd as part of celebrations to mark Queen Elizabeth II's platinum jubilee. The ceremony, performed by regiments of the British Army, has been a tradition of British infantry regiments since the 17th century. IMAGES