Space Marine Battles is a 26-book series with 26 released primary works first released in 2010 with contributions by Steve Parker, Aaron Dembski-Bowden, Andy Hoare, Gav Thorpe, Nick Kyme, Chris Wraight, Sarah Cawkwell, Rob Sanders, C.L. Werner, David Annandale, Guy Haley, Ben Counter, Christian Z. Dunn, Paul Kearney, Justin D. Hill, Mark Clapham, L.J. Goulding, Mike Lee, and Andy Smillie.
Space Marine Battles is a series of Black Library novels launched in 2010. The series focuses on notable battles and exploits of various Space Marine Chapters and their heroes.
At the 2012 Black Library Weekender, C.Z. Dunn announced that later episodes to be treated in the series would likely include memorable vignettes from the Badab War.
In 2017, Space Marine Battles was re-launched as the Space Marine Conquests series.
Series order has been taken from: https://wh40k.lexicanum.com/wiki/List_of_Novels#Space_Marine_Battles