In early 2012 the four members Daniel Myhr, Daniel Mullback, Oskar Montelius and Rikard Sundén decided to leave the band Sabaton.
But the will to play music never left them, so they decided to start a new band.

It didn't take long before they had completed the line-up with a bassplayer and vocalist. Stefan "Pizza" Eriksson (Volturyon), a longtime friend of the guys since the Sabaton-era and Nils Patrik Johansson (Astral Doors, Lion's Share etc), one of the most respected singers in the genre joined the forces and the band was founded.

In 2015 the guitarplayer Oskar Montelius decided to leave the band and Civil War decided to part ways with bassplayer Stefan "Pizza" Eriksson. The new line-up recorded the new album "The Last Full Measure", released in 2016.