Search for: Home » News & Analysis » MDA: Test of DDG, Standard Missile-3 IIA a Good Start, But More Work Needed on Homeland Defense Mission MDA: Test of DDG, Standard Missile-3 IIA a Good Start, But More Work Needed on Homeland Defense Mission May 13, 2021 12:47 PM On Nov. 16, U.S. Missile Defense Agency and Navy sailors aboard USS John Finn (DDG 113), an Aegis Ballistic Missile Defense System-equipped destroyer, fired a Standard Missile-3 (SM-3) Block IIA guided missile that successfully intercepted and destroyed a mock Intercontinental Ballistic Missile (ICBM) during a flight test demonstration in the broad ocean area northeast of Hawaii in November 2020. MDA photo.