An unarmed intercontinental ballistic missile (ICBM) capable of sending a nuclear bomb across the world was launched Wednesday from a California military base. The test took 10 months to plan out.
The U.S. has around 450 ICBMs. Each ICBM can travel over 8,000 miles. Missile tests by North Korea has made dealing with the dictatorship a top U.S. national security concern.