Counter-IED efforts are done primarily by military and law enforcement (led by intelligence efforts) with the assistance of the diplomatic and financial communities. It involves a comprehensive approach of countering the threat networks that employ Improvised Explosive Devices (IEDs), defeating the devices themselves, and training others. Counter-IED, or C-IED, is usually part of a broader counter-terrorism, counter-insurgency, or law enforcement effort. Because IEDs are a subset of a number of forms of asymmetric physical attack used by insurgents and terrorists, C-IED activities are principally against adversaries and not only against IEDs. C-IED treats the IED as a systemic problem and aims to defeat the IED System.