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'''Dagon''' is a minor [[Tyranid]] [[Hive Fleet]], currently active in the [[Eastern Fringe]]s and the [[Jericho Reach]] region. A splinter fleet of [[Hive Fleet Behemoth|Behemoth]], it detached before its destruction in the [[First Tyrannic War]]. The Tyranid Hive Fleet launched a surprise attack [[Imperial]] forces of the [[Achilus Crusade]] in 817.[[M41]], sewing widespread and death and confusion thanks to the [[Shadow in the Warp]]. The Hive Fleet has consumed at least nine inhabited worlds while immediately threatening six more. The fate of more then twenty other systems lost in the Shadow in the Warp remains unknown.{{Fn|1}}

Herisor was the first world to fall to the Hive fleet followed by attack on Freya and Zanatov's Harbour. Since the discovery of Freya’s ruination in early 814M41, Deathwatch forces became aware of the Tyranid incursion. Only with their help has the Achilus Crusade managed to stall the advance of Dagon. Currently the Hive Fleet’s is well supplied with bio-mass, and as such it represents a substantial threat to the Jericho Reach.{{Fn|2}}{{WIP}}

Hive Fleet Dagon ==Tactics==This hive fleet scouts various system, with vanguard drone ships that have been found in over 20 systems.

Because of When the limitations imposed by the Shadow in the WarpTyranid Hive Ships enter a system they immediately assault any habitable planets, while ignoring any Imperial space stations and outposts on otherwise barren planets and moons. Imperial analysts believe that Hive Fleet Dagon was identified vessels have only been attacked after it had completed several successful assaults within they directly engaged the Jericho ReachTyranid void travellers. As These are a consequence, it is uncertain whether the Tyranid forces are the spear tip few of a much larger force, or if they simply represent the surge in growth that would occur after absorbing reasons why the bio-mass from several of the region’s planets. If these xenos began their intrusion with a limited force, it may be Achilus Crusade believe that the earliest attacks exhibited were undertaken Hive Mind is operating in a conservative mannerfashion or unable of identifying these as worthwhile targets.

Unfortunately for On Castobel, Atonement, and Hethgard, Imperial defenders managed to repel enough of the Achilus Crusade forces, it is clear spores that the Hive Fleet has met with a great deal battles for control of successthese planets have become protracted engagements. At this timeOn Avalos and Treyen, Imperial defenders even managed to repulse the Hive Fleet’s resources are generally well supplied with bio-mass. As a consequenceinitial Tyranid attack, causing the void-faring Tyranid incursion represents a substantial threat to all other life within the Jericho Reach. These xenos are capable of exploiting the raw materials that they have captured creatures to launch attacks that utilise near overwhelming force against prey worlds. With each triumph, their resources are renewed and their capacity for destruction becomes further enhancedleave those systems.

Deathwatch agents are currently monitoring reports that could indicate the earliest stages of Tyranid scouting activities within more than a dozen systems. Based upon current data, the Deathwatch believes that this substantially exceeds the number of planets that the Hive Fleet is currently capable of engaging. While Deathwatch agents have confirmed Tyranid activity in all systems that have been attacked by the full might of the Hive Fleet, not all systems that exhibited a scouting presence have been attacked. This suggests that the Hive Fleet may be plotting out its travel through the Jericho Reach. The Hive Mind may be preparing for an extended incursion, carefully selecting which planets might offer the most biomass return, so that environments of less strategic value could be targeted after its resources are better established. When the Tyranid Hive Ships enter a system, they have consistently demonstrated a specific focus upon immediately assaulting any habitable planets. While this may seem an obvious strategy, it is important to note that Hive Fleet Dagon has largely ignored Imperial space stations and outposts on otherwise barren planets and moons. Imperial vessels have generally only been attacked after they directly engaged the Tyranid void travellers. It might offer further evidence that the Hive Mind is operating in a conservative fashion, or might simply be that for some reason the Hive Fleet is unable to accurately identify these elements as worthwhile targets. Once Hive Ships enter the orbit of a prey planet, they have consistently begun their attacks by launching vast numbers of Mycetic Spores towards the world’s surface. In the earliest reported instances, this initial attack wave was so numerous that defenders were overwhelmed within days. More recently, Crusade forces have successfully survived this initial attack. On Castobel, Atonement, and Hethgard, Imperial defenders managed to repel enough of the spores that the battles for control of these planets have become protracted engagements. On Avalos and Treyen, Imperial defenders even managed to repulse the initial Tyranid attack, causing the void-faring Tyranid creatures to leave those systems. There are many speculations as to why the Tyranids fled, some Imperial analysts believe they moved on to easier prey, while more military minds speculate the creatures are attempting deliberate feints to draw Imperial defenders away from other worlds. If this is the case, it may be that planets further from currently engaged systems could be attacked unexpectedly. The Orpheus Salient currently has a very limited number of defenders held in reserve. The vast majority of these are currently deployed upon those planets closest to the Tyranid incursion. In the event the Hive Mind chooses to bypass those planets, and instead targets worlds deeper behind enemy lines, the consequences could be catastrophic. Such a tactic might also explain the extensive number of systems where scouting activity has been confirmed.{{WIP}}