Wars by type

war between organized groups within the same sovereign state or republic

international military conflict

conflict between two actors in which neither directly engages the other

unrestricted warfare in which belligerents engage with all available resources and/or civilians and civil infrastructure are considered legitimate targets

thumb|upright=1.35|Map of the first phase of Operation Barbarossa on 25 August, 1941

military conflict waged without the justification of self-defense

war primarily caused or justified by differences in religion

conflict between ethnic groups

military strategy of wearing down the enemy by continual losses in personnel and material

war initiated to prevent another party from attacking

legal term used by the International Criminal Court (ICC)

conflict in which the belligerents do not expend all of each of the participants' available resources

Maoist military strategy

war prompted by a succession crisis in which two or more individuals claim the right of successor to a deceased or deposed monarch

competition of sets of genes, traits, or species, that develop adaptations and counter-adaptations against each other

a war involving colonial powers and their territories.

conflict not involving direct military action between the major actors

war that is initiated in an attempt to deal with an expected attack before that attack materializes

type of war in which the goal is the complete annihilation of a state, a people or an ethnic minority

lasting state of war with no clear ending conditions

type of war justification

military conflict between two or more nations without either side issuing a formal declaration of war

Limited wars among European monarchies, 1648 to 1789

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