History's killer queens come in all colours, ages, and leadership styles. Elizabeth Tudor and Golda Meir played the roles of high-stakes gamblers who studied maps with an unblinking, calculating eye. Angola's Queen Njinga was willing to shed (and occasionally drink) blood to establish a stable kingdom in an Africa ravaged by the slave trade. Caterina Sforza defended her Italian holdings with cannon and scimitar, and Indira Gandhi launched a war to solve a refugee crisis.

From ancient Persia to modern-day Britain, the daunting thresholds these exceptional women had to cross - and the clever, sometimes violent ways in which they overcame them - are evoked in vivid detail by Jordan and Jordan. The narrative sidles up to these war queens in the most dire, tumultuous moments of their reigns and examines the brilliant methods and maneuvers they each used to defend themselves and their people from enemy forces. In the end, we come away with a new awareness of the extraordinary power and potential of women in history who walked through war's kiln and emerged from the other side-some burnished to greatness, others burned to cinders.