Electronic warfare (EW) is any action involving the use of the electromagnetic spectrum or directed energy to control the spectrum, attack of an enemy, or impede enemy assaults via the spectrum.

The purpose of electronic warfare is to deny the opponent the advantage of, and ensure friendly unimpeded access to, the EM spectrum.

EW can be applied from air, sea, land, and space by manned and unmanned systems, and can target humans, communications, radar, or other assets.

Command generally refers to the ability to "dominate an area of situation".

There are several definitions of command and control (C2).

According to older versions of U.S. Army FM 3-0, C2 in a military organization is the exercise of authority and direction by a properly designated commanding officer over assigned and attached forces in the accomplishment of the mission.

The term may also refer to command and control systems within a military system.

Interoperability is a characteristic of a product or system, whose interfaces are completely understood, to work with other products or systems, present or future, in either implementation or access, without any restrictions.

The military, consisting of the Army, Navy, Marines, Coast Guard, and Air Force, and also known as the Armed Forces, are forces authorized to use lethal and / or deadly force, and weapons, to support the interests of the state and some or all of its citizens.

The task of the military is usually defined as defense of the state, and its citizens, and the prosecution of war against another state.

The military may also have additional sanctioned and non-sanctioned functions within a society, including, the promotion of a political agenda, protecting corporate economic interests, internal population control, construction, emergency services, social ceremonies, and guarding important areas.

The military may also function as a discrete subculture within a larger civil society, through the development of separate infrastructures, which may include housing, schools, utilities, logistics, health and medical, law, food production, finance and banking.

Computer software, or simply software, is that part of a computer system that consists of data or computer instructions, in contrast to the physical hardware from which the system is built.

In computer science and software engineering, computer software is all information processed by computer systems, programs and data.

Computer software includes computer programs, libraries and related non-executable data, such as online documentation or digital media.

Computer hardware and software require each other and neither can be realistically used on its own.