Over the past decades, terrorism has become one of the most significant global threats. As a method of warfare, it employs various destructive incidents, which result in economic, physical and psychological human damage, to spread panic and force a government to fulfil terrorists’ demands. Employment of various types of injurious actions, extremist groups’ sufficient strength to exploit states with tenuous power, and certain governments’ support redefine and internationalize modern terrorism. As it is contemporarily not a “set of discrete groups and individuals to defeat and kill”, the international community faced the significance to elaborate new response measures against this threat convergence. According to Sinai, three types of warfare terrorist groups traditionally perform to achieve their goals – conventional low impact (CLI), conventional high impact (CHI), and chemical, biological, radiological, or nuclear (CBRN).
Cyber-warfare, defined as “shutdown due to attacks on critical national infrastructures or intimidation of civilians or governmental employees with the use of computer network and technologies”, is currently considered as an additional terroristic method. Every tyoe of warfare and every performed attack which caused panic and fear of the society empower terrorist to continue their abhorrent activity.
The type of warfare depends on groups’ intentions and capability to perform terroristic operations; all methods implicate a psychological element as an accomplished attack aims in panic and disorder’s spread within a community. CLI attacks define as shooting or bomb explosion, these attacks lead to an unsubstantial number of victims, in comparison with CHI attacks. One of the most notorious CHI acts of assault was the clash of the aircraft with American skyscrapers on September 11, 2001. CBRN weapons are considered as the most perilous since these devices arrange a devastating attack. All terroristic methods of warfare are empowered by financial support from an illegal business, and utilization of weak states’ ungoverned zones. Extremist elements’ penetration in minor religious communities of developed countries due to their unsustainable border control plays a significant role in the spreading of terrorism as well.