Featured Post

test270621

Monday, July 2, 2012

Electronic Warfare

Electronic Warfare is definitely an ele- ment of combat power. It is a weapon, which can be used without being detected to bring destruction down upon enemy forces.
Electronic Warfare in itself, however, is non-lethal and can be utilized in many ways without endangering a single human life.
It is a source of essential planning and combat information regarding the disposition, firepower and intentions of the enemy forces. It provides a commander with a means for monitoring the activity on a area of operation and determining the effect of his tactics on en- emy forces.
It also provides the military commander with both covert and overt methods for dis-
rupting and suppressing the enemy's com- mand, control, communications and intelli- gence systems (C³I).
Electronic Warfare is also referred to as radio electronic combat. These terms are gen- erally accepted as including Electronic Sup- port Measures (ESM) and Electronic Counter Measures (ECM) for use on the battlefield.
In addition, we include Communications Intelligence (COMINT) and Electronic Intelli- gence (ELINT) in the overall term Electronic Warfare as well as Electronic Protection Measures (EPM); and the meaning of the term will be so used in this training.

IEDs

"Shampoo bottles, bicycle seats, tiffins. A plastic container or an LPG cylinder. A parcel of books. A clock, a teddy bear. In the Kashmir Valley, any one of these innocuous objects can be fatal. They are all commonly used by militants to fashion bombs and improvised explosive devices (IEDs). But the most lethal of all is the remote controlled explosive device, hidden in a ditch, a drainpipe or a parked vehicle."
- "Lethal Weapons", Indian Express Newspaper (Bombay), August 24, 2000
General
While terrorists will use conventional weapons, such as rocket-propelled grenades and assault rifles to achieve their goals, they also have the ability to assemble and employ a wide variety of lethal improvised explosive devices (IEDs). Explosives are a popular weapon with terrorists and are covered in the al Qaeda training manual. The manual states, "Explosives are believed to be the safest weapon for the Mujahideen. Using explosives allows them to get away from enemy personnel and to avoid being arrested." It goes on to say that, "In addition, explosives strike the enemy with sheer terror and fright." 183
IEDs are a common tool of terror used by non-state actors. These devices have been fabricated in an improvised manner and incorporate highly destructive lethal and dangerous explosives or incendiary chemicals, which are designed to kill or destroy the target. The materials required for these devices are often stolen or misappropriated from military or commercial blasting supplies, or made from fertilizer and other readily available household ingredients.184 IEDs basically include some type of explosive, fuse, detonators and wires,
shrapnel and pieces of metal, and a container to pack the explosives and shrapnel.
The use of IEDs by terrorists is a constant threat. Terrorist groups are continuously developing new techniques and tactics in response to defenses and countermeasures established by their opponents. They will disguise IEDs to hinder recognition and will often booby-trap the devices to detonate if disturbed.
The most simple of the IEDs used is the one initiated by closing of a battery circuit, similar to turning on a battery operated light. When turning on the switch closes the circuit, electricity flows to the light so it can be illuminated. As shown in Figure E-1, a clothespin- triggering device in this IED replaces the light switch and when it is activated, the electricity flows to the charge, thus detonating the explosive.
183 Ben N. Venzke and Aimee Ibrahim, Al Qaeda Tactic/Target Brief (Alexandria: IntelCenter/Tempest Publishing, 2002), 11.
184 Conventional Terrorist Weapons (New York: United Nations Office for Drug Control and Crime Prevention,
2002), 4; available from http://www.undcp.org/odccp/terrorism_weapons_conventional.html; Internet; accessed 12 November 2002.

Cryptography

Nearly two thousand years ago, Julius Caesar sent hand written orders for an attack to several of his legions. The messages were hand carried by runner. One of the runners was subsequently captured but the enemy could not make any use of the message because they could not understand it. The enemy soldiers encouraged the runner to explain the meaning of the message, however he did not know its contents and subsequently died at the hands of his captors. All Caesar had done was transpose each letter in the message by a predetermined number of places and the message was therefore unintelligible. Caesar won a great victory that day and the era of encoded messages was born. Historically, this would appear to be the first use of codes on the battlefield and the process became known as the Caesar Code. It was only a matter of time however before all armies were using codes and the emphasis was then placed on code breaking.

Transposition codes of Caesar's type were used for more than two thousand years and became more sophisticated as time progressed but it has only been since the start of WW11 that machines have been used for encoding and encryption. Today, every developed country in the world uses a combination of encoding and encryption to protect sensitive information. It was not until the early 1970s however that civilian businesses began using encryption – up until then, it had been the sole purview of the military.

These days, we can buy encryption software for use on our own PCs to encrypt email to our friends or business colleagues, and large business houses such as the banks routinely use encryption to secure transaction details. The quality of the protection provided by encryption varies widely and is largely dependent on the type of encryption algorithm used as well as the length of the encryption key.