Water diplomacy can serve as a tool for trust-building and cooperation in regions affected by historical conflicts, as highlighted during a visit to Lake Havasu, Arizona. The conversation between the writer and Mayor Cal Sheehy explored ways the US and Israel might work together to address shared water challenges. Water challenges in the American Southwest and the Middle East emphasize the shared goal of finding sustainable solutions on local, regional, and global levels. Water disputes in the American Southwest, particularly over Colorado River rights, mirror the struggles faced in the Middle East. Water diplomacy offers a path toward shared solutions and lasting peace.