Standard missiles are a family of surface-to-air and air-to-air missiles developed by the United States Navy. They are designed to defend against various aerial threats, including aircraft and missiles. These missiles are typically launched from naval ships and are known for their versatility and effectiveness in combat situations. The Standard Missile-2 (SM-2) and Standard Missile-3 (SM-3) are notable examples, with the SM-2 primarily used for fleet defense and the SM-3 designed to intercept ballistic missiles. Both types are integral to the Aegis Combat System, enhancing naval capabilities in modern warfare.