Definition of Babylon 5: a call to arms (game)

Babylon 5: A Call to Arms (ACtA) is a tabletop miniatures boardgame released in September 2004 by Mongoose Publishing, designed initially as an expansion to their Babylon 5: The Roleplaying Game, it is a complete game in its own right. Babylon 5: A Call to Arms is based upon the sci-fi television series Babylon 5 and draws heavily on material from the television show and the boardgame Babylon 5 Wars. The game's popularity exceeded Mongoose Publishing's initial expectations and has expanded to include new rules supplements and new miniatures, and a second edition is currently being worked upon and expected to be released in the second half of 2007.