Changes

The Ultramarines were the first [[Chapter|Space Marine Chapter]] to successfully repel a [[Tyranid]] invasion. With the help of [[Ultramar|Ultramar's]] [[PDF]], a [[Titan Legion]], and ships from [[Battlefleet Tempestus (fleet)|Battlefleet Tempestus]], [[Hive Fleet Behemoth]] was defeated at the [[Battle of Macragge]] in 745.[[M41]]. Since then, the Ultramarines have tirelessly hunted down the [[Tyranids]] to honour and avenge the fallen at the [[Battle for Macragge]]. They contribute a large number of [[Marines]] to the [[Deathwatch]] because of this. The Ultramarines were also instrumental in defeating [[Hive Fleet Kraken]] on [[Ichar IV]], and [[Hive Fleet Leviathan]] on [[Tarsis Ultra]].

===The Jorun Retaliation===