One of the most unpredictable and dangerous aspects of warfare is the use of guerrilla warfare. Guerrilla warfare is when a smaller and more mobile force can defeat a larger army through sabotage, ambushes, and hit-and-run tactics. In my medieval research, I learned that the Welsh were prolific users of guerrilla warfare and were able to keep the English at bay until they were conquered by Edward I AKA Longshanks. Then in the Welsh Revolt that lasted from 1400 to 1415, the Welsh made good usage of guerrilla warfare before engaging the English in open warfare. In my second fantasy book, I will be featuring a rather frightening form of guerrilla warfare. With all of their fighting men gone off to war, a kingdom will be invaded by an Imperial army, who will receive fierce resistance from the locals. The guerrilla forces will only consist of old people, women, and children. The elders will serve as strategists and tacticians, the women will serve as shield maidens who are just as skilled in combat as their men, and the children will serve as assassins and saboteurs who slit enemy throats in their sleep and set fires to enemy camps. The locals will even burn their own farms and villages in order to reduce the number of resources the invaders could pillage, which will starve them out. Overall, even though their fighting men are gone, these locals are NOT to be underestimated!