A newsreel depicting the first successful underwater launch of the UGM-27 Polaris on July 20, 1960. This two-stage submarine-launched ballistic missile began development in 1956 and was meant to provide second strike capabilities. After several successful test firings on land, the missile was scheduled for an underwater test, being loaded onto USS George Washington at Cape Canaveral before being fired from the Atlantic Missile Test Range at a target 1,100 miles (1,800 km) away.Film: Universal International Newsreel