59,235
edits
Changes
From Warhammer 40k - Lexicanum
m
no edit summary
|width = 30em
}}
The '''Battle of Isstvan III''' (also referred to as the '''Isstvan III Atrocity'''{{Fn|1c}}{{Fn|1d}}) was the start of the [[Horus Heresy]] and was fought between the [[Adeptus Astartes]] loyal to the [[Emperor of Mankind]] and those traitors that swore fealty to [[Imperial Guard Hierarchy#Warmaster|Warmaster]] [[Horus]].{{Fn|1a}}
==History==
**{{Endn|1b}}: pg. 49
**{{Endn|1c}}: pg. 74
**{{Endn|1d}}: pg. 111
*2: [[Galaxy In Flames (Novel)]]
**{{Endn|2a}}: Chapter 12
