It&#x27;s hard to compare Mongols to Europeans. The composite bows rely on animal-based adhesives, which are great in cold and dry climates, but fall apart in humid and warmer climates.<p>Also, light cavalry armies are useless against castles and fortified cities as the ones found in most of Europe, specially when you don&#x27;t have huge, flat battlefields that allow light cavalry to circle any target.<p>In other words, Mongol warfare was perfect for the environment they were created for: vast empty dry lands with few geographical features and settlements which are far from each other.