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Jacinto Plateau, Tyrus

Pendulum Wars Allegiance

Coalition of Ordered Governments

Locust-Human War Allegiance

Coalition of Ordered Governments

Notable Facts

Capital of the COG and Tyrus

Ephyra was the capital city of both the nation of Tyrus and the Coalition of Ordered Governments during the Pendulum Wars. The city was built upon the once-thought impregnable Jacinto Plateau, but was attacked by the Locust Horde on Emergence Day and fell to the Locust a decade later, suffering catastrophic damage. During the day, much of the city was under the Locust's total control, and at night it was overrun by Kryll. Only a few pockets of Stranded human survivors remained in Ephyra until the Lightmass Offensive.


Silver EraEdit

At the height of the Kashkur Empire during the Silver Era, approximately five hundred years before Emergence Day, Ephyra was only a small village in Tyrus.[1]

Pendulum WarsEdit

During the Pendulum Wars, Ephyra housed the CIC in the House of Sovereigns.[2] From here, Operation Leveler was planned. This led to the eventful downfall of the majority of the UIR nations and the joining of the COG.[3]

Locust WarEdit

Emergence DayEdit

On E-Day, the Locust managed to breach into Ephyra, causing widespread destruction and chaos. The entire city was declared a red-zone by COG command. A squad of Gears under the command of Corporal Minh Young Kim rendezvoused with Colonel Victor Hoffman's convoy of commandeered civilian vehicles as it arrived at the House of Sovereigns. Kim's squad defeated a Locust incursion and killed a Corpser using a Hammer of Dawn. While Kim escorted Hoffman and Lieutenant Anya Stroud inside the building, the rest of his squad defended the building's entrance against successive waves of Drones, Boomers, and Reavers. Unfortunately, the Hammer of Dawn went offline, and Kim's squad was wiped out by a Reaver.[4]

Hammer of Dawn counterattackEdit

One year after E-Day, the newly-elected Chairman Richard Prescott called for a massive COG counterattack against the Locust stronghold in southern Tyrus, but was unable to rally any COG state except for the South Islands. At this point, he decided to use the Hammer of Dawn for a massive scorched earth attack against all Locust held areas, denying the Locust any gains on the ground. This led to Ephyra becoming overcrowded with thousands of COG citizens from across Sera who flocked to the city for shelter.[2]

Fall of EphyraEdit

In 10 A.E., the Locust Horde finally broke through the granite bedrock of Jacinto Plateau, overrunning much of the plateau including Ephyra. The Battle of Ephyra ended with the Locust claiming most of the southern half of the city. The COG moved government operations to Jacinto, which became the new capital. Southern Ephyra was looted by Locust and Stranded, and Kryll infested many abandoned buildings. The massive Kryll infestation forced both the Locust and Stranded to take shelter at dusk in order to avoid being torn to shreds.[2]

Lightmass OffensiveEdit

In 14 A.E., the COG launched the Lightmass Offensive, an ambitious operation to locate and destroy the Locust stronghold using a Lightmass Bomb. Alpha Squad was initially sent to Ephyra to deploy a Sonic Resonator within the Locust tunnels there and chart them, but Alpha was overwhelmed by Locust forces. Delta Squad was then deployed to find and assist Alpha. Alpha's surviving members were folded into Delta, and the squad fought its way through Ephyra's ruins to acquire a vehicle in order to reach Lethia Imulsion Facility.[5]

Aftermath of the Lightmass OffensiveEdit

In the aftermath of the Lightmass bombing at Timgad Valley on Ephyra's outskirts, the Locust's hold on the city had weakened, and the Kryll breeding grounds were completely wiped out.[6]. The Stranded were able to walk their farm animals at night freely.[2] COG papers claimed that Ephyra was liberated, though the Locust Horde was still able to wage guerrilla warfare in the city during the Evacuation of North Gate.

Post-Locust WarEdit

Following the end of the Locust War, the reconstituted COG opted to rebuild human civilization by constructing a series of planned, walled cities known as settlements, rather than reconstructing the devastated old cities. Ephyra remained abandoned, and New Ephyra was founded as the new capital of the COG.[4]


Ephyra was a major Tyran urban center located on the Jacinto Plateau. The city was built on top of granite and a dead volcano,[7] but the outlying areas of the city stretched over softer rock and fissures that rendered it vulnerable to Locust tunneling.[2] The area surrounding Ephyra is mostly woodland and the wealthier district of East Barricade has a view of a nearby mountain range. The Timgad Valley flanking East Barricade is somewhat desert. A river runs through the city center and outer boroughs.

Notable LandmarksEdit



  • In game, Ephyra is very reminiscent of the real life Sarajevo in the former Yugoslavia. The city was under siege for almost four years, roughly the same time period as the skirmishes post the Fall of Ephyra. Like Ephyra, Sarajevo suffered massive casualties and infrastructural damage due to ethnic factions competing for control. Also like Ephyra, with the Locust targeting all humans both civilian and military, there was systematic genocide being perpetrated by the invading Republika Srpska Army against Croats, Bosniaks, and other groups. In both cases, many citizen encampments remained within the city with little resources to survive. The real life Siege in Sarajevo was eventually broken by Croats and Bosniaks forces intent on ending the war, bringing stability to the region, and bringing war criminals to justice.


  1. Gears of War: Anvil Gate
  2. 2.0 2.1 2.2 2.3 2.4 Gears of War: Aspho Fields
  3. Gears of War: Jacinto's Remnant
  4. 4.0 4.1 Gears of War 4
  5. Gears of War
  6. Beneath the Surface: An Inside Look at Gears of War 2
  7. Gears of War: The Slab pg 4

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