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The Battle of Austerlitz by François Gérard.
War is a state of conflict between relatively large groups of people (such as nations, states, organizations, social groups), which is characterized by the use of armed lethal violence between combatants or upon civilians. Other terms for war, which often serve as euphemisms, include armed conflict, hostilities, and police action.

A common look on war is a series of military campaigns between at least two or more opposing sides involving a dispute over sovereignty, territory, resources, ideology or a host of other issues. A war to liberate an occupied country is sometimes characterised as a "war of liberation", while a war between internal elements of the same state may constitute a civil war.

Aside from humans and their primate brethren, ants are the only other animals known to exhibit such behavior on a large scale.

A battle is a single engagement fought between two or more parties, wherein each party or aligned group will seek to defeat their opponent. Battles are most often fought during military campaigns and can usually be well defined in time, space and action. Wars are generally the continuum of a related series of battles and are guided by strategy, whereas individual battles are the stage on which tactics are employed.

Military history is the recording and analysis of those events in the history of humanity that fall within the category of organised armed conflict, and that relate to the institutions and organizations that prosecute such conflict.

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A Type 2 AK-47
The AK-47 is a gas-operated assault rifle designed by Mikhail Kalashnikov, produced by Russian manufacturer Izhmash and used in many Eastern bloc nations during the Cold War. It was adopted and standardized in 1947. Compared with the auto-loading rifles used in World War II, the AK-47 was generally more compact, with a shorter range, a smaller 7.62 × 39 mm cartridge, and was capable of selective fire. It was one of the first true assault rifles and remains the most widely used. The AK-47 and its numerous variants and descendants have been produced in greater numbers than any other assault rifle and are in production to this day.

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Fight for the Bagration flèches

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USS Pennsylvania leading USS Colorado, USS Louisville, USS Portland, and USS Columbia into Lingayen Gulf before the landing on Luzon, Philippines in January 1945.

The battleship USS Pennsylvania leads USS Colorado, USS Louisville, USS Portland, and USS Columbia into Lingayen Gulf before the landing on Luzon, Philippines in January 1945. Battleships and other big gun naval vessels that served in the Pacific Ocean theater of World War II were used primarily for offshore bombardment of enemy positions and as anti-aircraft screens for aircraft carriers.
Photo credit: United States Navy

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