If Iran closes the Strait of Hormuz, the U.S. Navy has a backup plan to save one-fifth of the world's daily oil trade: send in the dolphins to detect the underwater mines and swimmers and then report back to the Navy. They are given rewards such as fish on correct completion of a task.
The U.S. Navy trains dolphins and sea lions under the U.S. Navy Marine Mammal Program, which is based in San Diego, California. Military dolphins were used by the U.S. Navy during the First and Second Gulf Wars. About 75 dolphins are in the program.
Photoshop dolphins or sea lions serving in the U.S. Navy any way you wish.