December 8th, 1941 marked the start of the full-scale invasion of the Philippines during World War 2. With the surrender of the Bataan Peninsula and the fortified island Corregidor in the Spring of 1942, all hope seemed lost. But, almost overnight, the Philippine underground resistance began to take shape. Units made up of guerrilla volunteers from all walks of life participated in the liberation of the Philippines. The women guerrillas of the resistance, or guerrilleras, are one such group who have received less attention in Pacific Theater histories. The names and faces of those Filipina guerrilla soldiers, who led their own units, conducted espionage, nursed the wounded, led raids, or raised armies, have nearly been forgotten. The rigid gender barriers guerrilleras faced both on and off the field of duty resulted in their stories being silenced or relegated to less commanding roles in the aftermath of the war. This book attempts to bring these stories to light, so that the legacy of these unsung Filipina resistance fighters lives on.