Yuma Proving Ground is a United States Army facility located in southwestern Arizona. Established in 1943, it serves as a testing site for military equipment and technology, including vehicles, weapons, and various systems. The vast desert landscape provides an ideal environment for evaluating performance under extreme conditions. The proving ground covers over 1,300 square miles and is one of the largest military testing areas in the world. It supports various branches of the military and collaborates with defense contractors to ensure that equipment meets operational standards before deployment.