A military dolphin is a dolphin trained for military uses. The United States and Russian militaries have trained and employed oceanic dolphins for several reasons. Such military dolphins have been trained to rescue lost naval swimmers or to locate underwater mines. The U.S. Navy trains dolphins and sea lions under the U.S. Navy Marine Mammal Program, which is based in San Diego, California. They get some of their dolphins from the Gulf of Mexico. Military dolphins were used by the U.S. Navy during the First and Second Gulf Wars. About 75 dolphins are in the program.