Command Series Volume I was the product of Rand Games. The company, in an attempt to differentiate itself from other wargame publishers in the 1970s, started a subscription service in which the subscriber would regularly receive a small wargame title. Several of the games used shared elements. (These elements shipped first.) Subscribers also received a distinctive red cabinet intended to hold all of the titles.
The series included several excellent titles by designer David C. Isby and featuring the artwork of Al Zygier (both regular SPI contributors), but as is common with subscriptions generally included some klunkers as well.