This book focuses primarily on the Battles of Barnett and Tewkesbury,2 decisive battles of the War of the Roses in the latter part of this conflict.It describes the weapons,tactics,and mechanics of the battles,without going into a long and complex history in the Wars of the Roses.I particularly found it interesting because of the mention of the use of field artillery that fired stone balls and possibly a type of cannister shot.By this time warfare was evolving and the heraldry charging knight and his armored steed were rapidly being replaced.I was wondering if artillery,of which Edward IV was superior in,may have played the decisive role at Tewkesbury and Barnet.The author mentions Somersets' ill-advised charge into Edward's line.Was Somerset "unnerved" by Edward's artillery and frustrated to the point of making a wreckless advance to escape the bombardment.Field Artillery was a relatively new armed wing and it would constantly require new tactics and strategies to deal with it.Since both opposing were close in size,about 6,000 apiece and both had a legitimate title to the English throne a few extra cannon could have been the difference.There is excellent illustrations and really superb,detailed maps of tactics and manuevers.A flashback in time to a period when England was a pawn of continental politics,with fresh armies organized and equipped in west-europe willing to risk a crack at the English throne.Alot of books written about the Wars of the Roses,deal with what population elements comprised the armies during this period and describe their equipment.From other reads a surprising percentage of both armies were mercenaries and the rest pretty much "retained" soldiery in the pay and alliance of their lord.These books also try to discern how badly these moving armies disrupted the English economy of the period:some books say that despite it all the carnage of these wars was relatively small and contained,and business went on as usual even during the worst of the conflict.Other books say that the Wars of Roses effected gravely the economy and severely downgraded the living standards of the period.This book sticks primarily to the battle itself and has more detail in regard to this.