Irregular militaryIrregular military is any non-standard military component that is distinct from a country's national armed forces. Being defined by exclusion, there is significant variance in what comes under the term. It can refer to the type of military organization, or to the type of tactics used. An irregular military organization is one which is not part of the regular army organization. Without standard military unit organization, various more general names are often used; such organizations may be called a troop, group, unit, column, band, or force.
Guerrilla warfareGuerrilla warfare is a form of unconventional warfare in which small groups of irregular military, such as rebels, partisans, paramilitary personnel or armed civilians including recruited children, use ambushes, sabotage, terrorism, raids, petty warfare or hit-and-run tactics in a rebellion, in a violent conflict, in a war or in a civil war to fight against regular military, police or rival insurgent forces. Although the term "guerrilla warfare" was coined in the context of the Peninsular War in the 19th century, the tactical methods of guerrilla warfare have long been in use.
Unlawful combatantAn unlawful combatant, illegal combatant or unprivileged combatant/belligerent is a person who directly engages in armed conflict in violation of the laws of war and therefore is claimed not to be protected by the Geneva Conventions. The International Committee of the Red Cross points out that the terms "unlawful combatant", "illegal combatant" or "unprivileged combatant/belligerent" are not defined in any international agreements. While the concept of an unlawful combatant is included in the Third Geneva Convention, the phrase itself does not appear in the document.
Human shieldA human shield is a non-combatant (or a group of non-combatants) who either volunteers or is forced to shield a legitimate military target in order to deter the enemy from attacking it. The concept of human shields as a resistance measure was created by Mahatma Gandhi as a weapon of resistance. On the other hand, the weaponization of civilians has also developed as a tactic by some non-state actors like ISIS.
Yugoslav WarsThe Yugoslav Wars were a series of separate but related ethnic conflicts, wars of independence, and insurgencies that took place in the SFR Yugoslavia from 1991 to 2001. The conflicts both led up to and resulted from the breakup of Yugoslavia, which began in mid-1991, into six independent countries matching the six entities known as republics which previously comprised Yugoslavia: Slovenia, Croatia, Bosnia and Herzegovina, Montenegro, Serbia, and North Macedonia (then named Macedonia).
Jus ad bellumJus ad bellum (ju:s or dʒʌs) refers to "the conditions under which States may resort to war or to the use of armed force in general." This is distinct from the set of rules that ought to be followed during a war, known as jus in bello, which govern the behavior of parties in an armed conflict.
Civil warA civil war is a war between organized groups within the same state (or country). The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies. The term is a calque of Latin bellum civile which was used to refer to the various civil wars of the Roman Republic in the 1st century BC. Most modern civil wars involve intervention by outside powers. According to Patrick M.
Distinction (law)Distinction is a principle under international humanitarian law governing the legal use of force in an armed conflict, whereby belligerents must distinguish between combatants and noncombatants (civilians). Combatant in this instance means persons entitled to directly participate in hostilities and thus are not afforded immunity from being directly targeted in situations of armed conflict. Civilian in this instance means civilians who are non-combatants.
Proportionality (law)Proportionality is a general principle in law which covers several separate (although related) concepts: The concept of proportionality is used as a criterion of fairness and justice in statutory interpretation processes, especially in constitutional law, as a logical method intended to assist in discerning the correct balance between the restriction imposed by a corrective measure and the severity of the nature of the prohibited act. Within criminal law, the concept is used to convey the idea that the punishment of an offender should fit the crime.
BelligerentA belligerent is an individual, group, country, or other entity that acts in a hostile manner, such as engaging in combat. The term comes from the Latin bellum gerere ("to wage war"). Unlike the use of belligerent as an adjective meaning "aggressive", its use as a noun does not necessarily imply that a belligerent country is an aggressor. In times of war, belligerent countries can be contrasted with neutral countries and non-belligerents.
