War is any large scale, violent conflict. By extension, the word can be used for any struggle. A group of combatants and their support is called an army on land, a navy at sea or in space, and air force in the air. Wars may be prosecuted simultaneously in one or more different theaters. Within each theater, there may be one or more consecutive military campaigns. A military campaign includes not only fighting but also intelligence, troop movements, supplies, propaganda, and other components. Continuous conflict is traditionally called a Battle, although this terminology is not always applied to conflicts involving aircraft, missiles or bombs alone, in the absence of ground troops or naval forces.

There are many wars in and related to the Halo Universe.

Forerunner WarsEdit

Flood WarsEdit

Covenant WarsEdit

Human WarsEdit

See alsoEdit

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