Not all armies make natural allies – the Warhammer world's history of blood and battle (to say nothing of deep-held grudges, rampaging nihilists and incompatible worldviews) ensures that some army combinations will make for stronger alliances than others. To work out how harmonious an alliance between two or more different armies is likely to be, we first need to discuss the alignment of the Warhammer world's armies the age-old division between Order and Destruction.