Ernesto "Che" Guevara was an Argentine Marxist revolutionary, physician, author, guerrilla leader, diplomat, and military theorist. He fought for liberation causes and served as a leader in Cuba. Joan of Arc was a French military leader and saint who fought to liberate France during the Hundred Years' War. She was intelligent and fought bravely for her beliefs, even at the cost of her life. Both figures were admired for valuing human life and fighting for justice, though with different causes and time periods.