These articles are devoted to the two main aspects of medieval warfare: men and technology. Men fought, led, and ultimately killed in war, while the technology that they used facilitated these tasks. The first group of essays highlights human strengths in the fighting of medieval wars, with a focus on events of the 14th and 15th centuries, specifically the Anglo-French wars and wars against the Turks. A second group addresses the technological side of warfare, in particular the advent and proliferation of early gunpowder weapons which evolved rapidly during the late Middle Ages, although never replacing the role of men. The articles study various facets of this evolution, from the increased use and effectiveness of guns in battles, sieges, and naval warfare, to changes in their science and metallurgy, surgical treatment of wounds caused by them, and governmental centralization of the technology.