Twentynine Palms Marine Base, officially known as the Marine Corps Air Ground Combat Center, is located in California's Mojave Desert. It serves as the largest Marine Corps base in the United States, covering over 1,100 square miles. The base is primarily used for training exercises, providing Marines with realistic environments to prepare for various combat scenarios. Established in 1952, the base supports a wide range of military operations and is home to several units, including the 1st Marine Division. Its vast desert terrain allows for extensive live-fire training and maneuvering, making it a critical asset for the U.S. Marine Corps.