Editing Attack on the Zeta Hydronis Secundus system

{{Status|Canon}}
{{Battle infobox
|prev=[[Battle of G617 g1]]
|conc=*[[Battle of LP 656-38 e]]{{Ref/Note|It is difficult to place battles in the timeline of this war as dates were not given for many of them. Thus any whose exact date cannot be determined are listed as concurrent with the others, even though the war lasted for 300 years and the battles mentioned were likely spread out during that time.}}
*[[Battle of DM-3-1123 b]]
*[[Battle of CE-10-2165-d]]
*[[Fate of Maethrillian]]
*[[Attack on Seclusion Spiral]]
|next=[[Battle of Kan Pakko]]
|image=
|conflict=[[Forerunner-Flood war]]<ref name="CF">[https://www.halowaypoint.com/en-us/news/canon-fodder-no-joke '''Halo Waypoint''': ''Canon Fodder - No Joke'']</ref>
|date=
|place=[[Zeta Hydronis Secundus system]]{{Ref/Reuse|CF}}
|result='''Flood victory'''{{Ref/Reuse|CF}}
*Complete annihilation of [[Forerunner]] presence{{Ref/Reuse|CF}}
|side1=[[Ecumene|Forerunner ecumene]]{{Ref/Reuse|CF}}
|side2=[[Flood|The Flood]]{{Ref/Reuse|CF}}
|side3=
|side4=
|commanders1=Unknown
|commanders2=[[Gravemind]]{{Ref/Reuse|CF}}
|commanders3=
|commanders4=
|forces1=Multiple [[Forerunner fleet|fleets]]{{Ref/Reuse|CF}}
|forces2=Billions of [[combat forms]]{{Ref/Reuse|CF}}
|forces3=
|forces4=
|casual1=
|casual2=
|casual3=
|casual4=
|civilian=
}}
During the [[Forerunner]]'s [[Forerunner-Flood war|war]] with the [[Flood]], Flood forces '''attacked''' [[Zeta Hydronis Secundus system|a Forerunner star system]] inhabited by [[Miner]]s. The Flood was initially held back, but with the assistance of the [[Gravemind]], the parasite eventually prevailed.{{Ref/Reuse|CF}}

==The battle==
[[File:H5G-Shattered world.png|thumb|left|250px|One of the colony planetoids torn apart by the Gravemind.]] 
During the Flood's conquest of [[Milky Way|the galaxy]], the parasite arrived at what would be known by the [[UNSC]] as the Zeta Hydronis Secundus system. Protected by layers of [[hard light]] and exotic matter, and fitted with energy projectors, the system's planetoids were considered impregnable. Due to the advanced defenses, the Flood's initial attack failed, however, the Forerunners' victory was short-lived, when the Gravemind itself turned an infinitesimal portion of its immense intelligence to bear on the problem.{{Ref/Reuse|CF}}

Grasping impossible [[star road|filaments]] buried beneath reality by the long-vanished [[Precursors]], the Gravemind pulled at strands that twisted and warped real space. Walls made of collapsed starmatter cracked and shattered, entire [[Forerunner fleet|fleets]] of kilometer-long warships tasked with defending the system vanished in flares of light, and [[Ecumene#Former ecumene worlds|colony]] planetoids were ripped apart. With the Miners' defenses compromised, the Gravemind poured billions of [[combat form]]s onto the surfaces of the colony worlds and into the Miners' installations. Those that survived the initial onslaught could only activate failsafes and await their deaths at the hands of the parasite.{{Ref/Reuse|CF}}

==List of appearances==
*''[[Halo 5: Guardians]]'' {{Im}}

==Notes==
{{Ref/Notes}}

==Sources==
{{Ref/Sources}}

{{Forerunner-Flood War}}
[[Category:Battles]]
{{DEFAULTSORT:Zeta Hydronis Secundus}}