Terminal High Altitude Area Defence (THAAD) is the latest system used to hit the missiles with the help of radar & satellite.
The area where both missiles hit each other in the air gets affected.
Anti-nuclear device is technically designed such that it can track a missile from where it is launched.
With the atmospheric temperature difference, satellite is emitted during a missile launch by which the speed, latitude & longitudinal location of missile launch details are obtained with radar from ground stations.
It attains all the information from where the missile is launched to where the missile hits through the radars.
As it is detected, anti-nuclear missile is launched, which has an updated latest technology in it, so that the launched nuclear device is resent to the place from where it was launched. Meanwhile, the nuclear device/missile is deactivated from blasting.