Marine Corps Base Camp Pendleton is the major West Coast base of the United States Marine Corps. It is located on the Southern California coast, in San Diego County, and bordered by Oceanside to the south, Cleveland National Forest, Orange and Riverside counties to the north, and Fallbrook to the east.The base was established in 1942 to train U.S. Marines for service in World War II. By October 1944, Camp Pendleton was declared a "permanent installation" and by 1946, it became the home of the 1st Marine Division. It was named after Major General Joseph Henry Pendleton (1860–1942), who had long advocated setting up a training base for the Marine Corps on the west coast. Today it is the home to myriad Operating Force units including the I Marine Expeditionary Force and various training commands.HistoryPrior to World War IIIn 1769, a Spanish expedition led by Captain Gaspar de Portolá explored northward from Loreto, Baja California Sur, seeking to reach Monterey Bay, something never before done overland by Europeans. On July 20 of that year, the expedition arrived in the area now known as Camp Pendleton, and as it was the holy day of St. Margaret, they christened the land in the name of Santa Margarita. The expedition went on to establish military outposts and Franciscan missions at San Diego and Monterey.
