Salamanders

The Salamanders, originally known as the Dragon Warriors, are the XVIII Legion of the 20 Space Marine Legions created by the Emperor of Mankind. Their Primarch was Vulkan. The legion remained loyal during the Horus Heresy, but were severely mauled in the first great opening battle, limiting the role they could play in the remainder of the war. Their primarch is never recorded as perishing, and in fact is believed simply to be missing; the search for him and his presumed great purpose is a defining trait of the Salamanders. Other aspects of the legion of Vulkan are their great hardiness as warriors and their equally strong constitutions, willpower and devotion to humanity. In some ways, they can be considered the ideal of what it means to be a Space Marine.