Mesopotamia is the land between two rivers, the Tigris River and the Euphrates River. Now, you can find Iraq - the place where they are fighting over car gas and religious reasons - over there.
In ancient Mesopotamia, there was a load of fighting. We know of their fighting, because of their cuneiform writing. They seiged other cities. They rode in chariots. They had bows and arrows. Scribes told about ancient Mesopotamians who were advanced for their time.
We also know something about the ancient Mesopotamians because of huge scuptures of the Lamassus. The Lamassus has the head of a human, the body of a lion, and the wings of an eagle. It guards palace gates. All together, this massive scupture is so strong that it can guard palace gates from evil spirits.
Ancient Mesopotamians were an advanced, and interesting, civilization.