Since earliest times the strategy and tactics of the Celts in battle has exhibited a continuity over the centuries that is quite surprising. This book provides a comprehensive study of the way in which the Celtic people fought and the weapons that they used. After an introduction which sets the background, the book concentrates on the Irish Wars, the civil war in Scotland, the campaigns of Graham of Claverhouse, Bonnie Dundee, the Jacobite uprisings of 1715 and 1745, and the North American War against the French and the Indians. Battles which are analyzed in detail include Clontibret, Yellow Ford, Moyry Pass, Kinsale, Tippermuir, Aberdeen, Inverlochy, Auldearn, Kilsyth, Killiecrankie, Preston, Sheriffmuir, Prestonpans, Falkirk, and Culloden. The author of this volume provides a sound, factual, and analytical base that identifies the continuity in Gaelic warfare from the 1590s to the 1760s which will interest all concerned with the study of the military history of Ireland, Scotland, England, and North America.