A system and method for improving the survivability of space systems following a High Altitude Nuclear Explosion (HANE) incident resulting in energetic electrons being trapped in the inner radiation belt of Earth is disclosed. The ULF electromagnetic waves is generated by space or ground based transmitters and the frequency range is selected such that the injected waves are in gyrofrequency resonance with trapped energetic particles. The Radiation Belt Remediation (RBR) depends on the wave-number of the injected waves and the wave-number of the injected waves increases along their propagation path when they approach the cyclotron frequency of the dominant or minority ions 0+, He+ and H+.