From the Norsemen and the world of the medieval knights, through to the industrialized mass warfare of the twentieth century, Michael Howard illuminates the way in which warfare has shaped the history of the Continent, its effect on social and political institutions, and the ways in which technological and social change have in turn shaped the way in which wars are fought. This new edition includes a fully updated further reading and a new final chapter bringing the story into the twenty-first century, including the invasion of Iraq and the so-called "War against Terror."