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This paper presents an approach to the potential unification of protection technology for a wide spectrum of electromagnetic environments (EME). Of particular interest is the protection of complex electronic systems. An electromagnetic topological approach is utilized to develop a consistent shielding protection method. Initially, applicable electromagnetic topological techniques are presented. Next, the varying characteristics of the various EME, for electromagnetic sources both internal and external to the system, are described. The EME considered in this paper include:Electromagnetic Interference/Compatibility (EMI/EMC) Lightning Electromagnetic Pulse (LEMP) Nuclear EMP (NEMP) High Power Microwaves (HPM) Existing protection practices, incompatibilites, and suggested remedies among these practices are discussed. Lastly, a quantitative and generalized topological protection approach together with the basic technological means for applying the unified approach is presented.