The game seems to have started in northern France, as a development of knightly tournaments and sieges.

ECONOMIST: History of the net

They are examining whether the deployment of gas might prove helpful if they are ever faced with similar sieges.

BBC: US identifies deadly Moscow siege gas

War to the Death: the Sieges of Saragossa, by Raymond Rudorff.

ECONOMIST: Millennium issue

You play as a regular warrior from a minor House and can pledge fealty to one of the major Houses, betray them whenever you like, and engage in massive castle sieges.

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There have been gun-battles and sieges in Nalchik before.

ECONOMIST: Caucasian dominoes | The