How did the Mesopotamians water their crops during the drought?

During droughts, Mesopotamians utilized an intricate irrigation system to water their crops. They constructed canals, dikes, and reservoirs to divert water from rivers like the Tigris and Euphrates, allowing them to manage water supply effectively. This innovative approach enabled them to sustain agriculture even in times of water scarcity, supporting their civilization's growth. Additionally, they practiced crop rotation and selected drought-resistant crops to optimize their yield.