In 1950, at the start of the Korean War, von Braun and his team were transferred to Huntsville, Alabama, his home for the next 20 years. Between 1952 and 1956, von Braun led the Army's rocket development team at Redstone Arsenal, resulting in the Redstone rocket, which was used for the first live nuclear ballistic missile tests conducted by the United States. He personally witnessed this historic launch and detonation. Work on the Redstone led to development of the first high-precision inertial guidance system on the Redstone rocket.