https://en.wikipedia.org/wiki/Professional_wargaming#SIGMA_war_games_(United_States,_1962–1967)

Submitted by aua on 2023.02.20. - 16:42

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	field_i_picture	title (item)	field_cer_web	field_cer_navbox	g_geofield
		SIGMA war games (United States, 1962-1967)	https://en.wikipedia.org/wiki/Professional_wargaming#SIGMA_war_games_(United_States,_1962–1967)

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