War elephants

War elephants played a critical role in several key battles in antiquity, especially in ancient India. While seeing limited and periodic use in Ancient China, they became a permanent fixture in armies of historical kingdoms in Southeast Asia. They were also used in ancient Persia and in the within armies of Macedon, Hellenistic Greek states, the Roman Republic and later Empire, and Ancient Carthage in North Africa. In some regions they maintained a firm presence on the battlefield throughout the Medieval era. However, their use declined with the spread of firearms and other gunpowder weaponry in early modern warfare. After this, war elephants became restricted to non-combat engineering and labour roles, as well as minor ceremonial uses.