Sir Charles William Chadwick Oman, KBE (1860 - 1946) was a British military historian of the early 20th century. His reconstructions of medieval battles from the fragmentary and distorted accounts left by chroniclers were pioneering. His style is an appealing mixture of astute analysis and dramatic narrative. He was born in Muzaffarpur district, India, the son of a British planter, and was educated at Oxford University. In 1881 he was elected to a Prize Fellowship at All Souls College, where he would remain for the rest of his career. He was elected the Chichele Professor of modern history at Oxford in 1905, serving as President of the Royal Historical Society (1917-1921), the Numismatic Society and the Royal Archaeological Institute.Oman was a Conservative member of Parliament for the University of Oxford constituency from 1919 to 1935, and was knighted in 1920.This Chronicon edition is the second volume of a two-volume edition, first published in 1898. It is a critical analysis of the military strategy and tactics employed by the British, and Continental armies during the later Medieval period. It describes the advances in strategy, tactics, fortifications, weaponry, armor, and it includes dramatic accounts of some of the significant battles fought during this turbulent period in Scotland, Ireland, England, France, Italy, Iberia, and Austria such as Crecy, Poictiers, Taglicozzo, Bouvines, Marchfeld, Bannockburn, Navarette, and others.

This history of medieval warfare, originally written in 1885 when its author—later one of the great medievalists—was still an undergraduate at Oxford, remains for students and general readers one of the best accounts of military art in the Middle Ages between Adrianople in 378 A.D. (the most fearful defeat suffered by a Roman army since Cannae in 216 B.C.) and Marignano (1515 A.D.), the last of the triumphs of the medieval horseman. It was extensively revised and edited by John H. Beeler in 1953 to incorporate many new facts uncovered since the late nineteenth century.

He begins by analysing the sources for our knowledge of the military history of the period, assessing their reliability: some chroniclers exaggerate, others are careful observers or have access to official records. There follows an examination of the constituent parts of the medieval army, knights and footsoldiers, equipment and terms of service, behaviour on the field, and psychology, before the problematic question of medieval tactics is addressed through analysis of accounts of a series of major battles. Strategy is discussed in the context of these battles: whether to seek battle, fight a defensive war, or attempt a war of conquest.