Rome, Italy - April 21, 2013: Legio XI Claudia waiting for the battle against Greek Insurgents to begin in Circo Massimo, in Rome. The legionaries and their chiefs are standing in line preparing to form the classical Roman war asset, the Testudo. The actors are all volunteers, participating to the celebrations for Rome's Foundation. This event has been organized by Gruppo Storico Romano and involved 11 different countries, 2000 people and 53 different volunteer associations. All the costumes are historically correct thanks to the supervision of a team of archeologists and researchers. The leading volunteer group of Gruppo Storico Romano was born in 1994. By now, the group has highly increased and has a scientific department of experimental archeology which expresses itself by recreating ancient situations such as parties or gladiators' fights and dances.