Battle over Installation 07

This article is based on canon information, but the article's title is conjectural and/or uses descriptions as the title, as there is currently no official name for the subject.

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Previous:	Razing of Oth Sonin
Concurrent:	Battle of Earth (2559)
Next:	Battle of Boundary Battle of the Mortal Reverie
Battle over Installation 07
Conflict:	Post-Covenant War conflicts Created conflict Battle for Zeta Halo
Date:	December 12–13, 2559
Location:	In orbit of Installation 07, Ephsu I, Ephsu system
Outcome:	Banished victory UNSC Infinity is lost. UNSC forces severely depleted and scattered across Installation 07. John-117 defeated and tossed into space by Atriox, and assumed dead. Cortana is locked down by the Weapon
Details Belligerents UNSC UNSC Navy UNSC Marine Corps Swords of Sanghelios Banished Created Commanders CAPT Thomas Lasky Spartan Commander Sarah Palmer MCPO John-117 Warmaster Atriox War Chief Escharum Cortana Strength UNSC Infinity 7,150 crew/personnel 1+ escort fleet† 6+ Mulsanne-class light frigates† Multiple Broadswords Multiple Longswords Multiple Pelicans Multiple Spartans 1+ Spartan-IIs Multiple Spartan-IVs Fireteam Intrepid Fireteam Taurus Fireteam Shadow Fireteam Windfall 86th Shock Troops Battalion 750 ODSTs Numerous Marines Sangheili Banished fleet 4+ Banished dreadnoughts Seraphs Dovotaa Workshop Grievers Hundreds of "occupation units" Multiple Phantoms Modular bases Numerous of boarding parties Jiralhanae Kig-Yar Unggoy Casualties John-117 assumed MIA UNSC fleet decimated UNSC Infinity At least 1,986 crewmembers of UNSC Infinity FFG-611 UNSC Mortal Reverie Unknown 1+ dreadnought crippled 2+ Jiralhanae 2+ Unggoy 5+ Kig-Yar Unknown

"Do you know how long it took us to neutralize your greatest ship? Four minutes. In four minutes, the Infinity, mankind's finest achievement, became a memory."

— War Chief Escharum.

This battle over Installation 07 was an engagement that took place on December 12, 2559, between the United Nations Space Command (UNSC) and the Banished over the Installation 07 and Ephsu I within Ephsu system. The battle over Installation 07 ultimately resulted in the scattering of both UNSC and Banished forces on Installation 07, as part of the larger protracted conflict on the ring.