1、 https:/crsreports.congress.gov Updated November 23, 2021Defense Primer: Electronic WarfareElectronic warfare (EW), as defined by the Department of Defense (DOD), are military activities that use electromagnetic energy to control the electromagnetic spectrum (“the spectrum”) and attack an enemy. The
2、 spectrum is a range of frequencies for electromagnetic energy. EW supports command and control (C2) by allowing military commanders access to the spectrum to communicate with forces, while preventing potential adversaries from accessing the spectrum to develop an operational picture and communicate
3、 with their forces. Some have argued that EW is a component of anti-access/area denial (A2/AD) campaigns. Role of EW in Military Operations Since the introduction of two-way radios, militaries have become dependent on the spectrum. This reliance has expanded over the past century to include nearly e
4、very weapon system. Applications include radio frequencies to communicate with friendly forces; microwaves for tactical data-links, radars, and satellite communications; infrared for intelligence and to target enemies; and lasers across the entire spectrum to communicate, transmit data, and potentia
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