Piedra y plomo: la honda frente a los asentamientos fortificados del noreste de la península ibérica a partir del siglo III a. c. y su repercusión en los sistemas defensivos

The study and analysis of the complex system of moats around Los Castellazos site (Mediana de Aragon, Zaragoza) has made possible to identify the sling as one of the most popular weapon to attack and besiege fortifications during the Roman Republic. For this, a calculation of the range of the projectiles was carried out. To conclude, the need for protection from this weapon explains the existence of outer defences, distant from the defensive enclosures, especially from the end of the 3rd Century B.C. and the beginning of the 2nd.