By 390 BC, the organization of the Roman army was in need of change. Fighting in the Greek-style with a heavy infantry was proving increasingly outdated and inflexible, resulting in the Roman's defeat at the hands of the Gauls at the battle of Allia. Following on from this catastrophe and in the next fifty years of warfare against Gallic and Italian tribes, a military revolution was born: the legion. This was a new unit of organization made up of three flexible lines of maniples consisting of troops of both heavy and light infantry. However, at the end of the 3rd century BC, Rome's prestige was shattered once more by the genius of Hannibal of Carthage, causing Roman battle tactics to be revised again. The legendary general Scipio Africanus achieved this, finally destroying the Carthaginian army at the climactic victory of Zama. A wholly new kind of soldier had been invented, and the whole Mediterranean world was now at Rome's feet. This book reveals these two defining moments in Roman military history and the revolution in battle tactics that was the result, examining how the Roman army eventually became all-conquering and all-powerful. “Roman Battle Tactics by Nic Fields, Ph.D. is an excellently researched instructive manual on the various skirmishes and war maneuvers of the Roman Empire from 390 B.C. to 110 B.C. Fields displays his extensive knowledge of ancient history brilliantly, and without sounding the least bit dry... The chronological explanations of the names, uses, weapons, and training methods of each type of unit the Romans used was especially helpful in understanding how each victory came about.” ― Meredith Greene, San Francisco Book Review (March 2010) Dr Nic Fields started his career as a biochemist before joining the Royal Marines. Having left the military, he went back to university and completed a BA and PhD in Ancient History at the University of Newcastle. He was Assistant Director at the British School in Athens, Greece, and then a lecturer in Ancient History at the University of Edinburgh. Nic is now a freelance author and researcher based in south-west France. Gerry Embleton has been a leading illustrator and researcher of historical costume since the 1970s, and has illustrated and written Osprey titles on a wide range of subjects for more than 20 years. He is an internationally respected authority on 15th and 18th century costumes in particular. He lives in Switzerland, where since 1988 he has also become well known for designing and creating life-size historical figures for museums. Sam Embleton is an illustrator. He is the son of Gerry Embleton, a popular military illustrator whose works include many books for Osprey Publishing. Reference Book