The ancient Mesopotamians developed pioneering military technology and techniques out of necessity to control fertile land and resources. They fought with organized armies equipped with innovations like chariots, battering rams, and iron weapons. Mesopotamian warfare was also characterized by alliances between city-states, propaganda to intimidate enemies, and professional standing armies. These military developments would influence later civilizations and some tactics are still used today, such as alliances to maintain balance of power and propaganda in media.