The Submarine Combat Patrol Insignia is a uniform breast pin worn by officers and men of the United States Navy's Submarine Service who have completed combat patrols during declared wars. Such patrols were last conducted during World War II. The pin shows the broadside of a Gato-class diesel submarine. A scroll beneath the submarine holds service stars, one gold star for each successful patrol after the first or a silver star for five successful patrols. Successful patrols were those so designated by fleet commanders.