Joint Assault Gold Ace No Ribbon

Erusea, officially the Kingdom of Erusea (エルジア王国),[1] is a large nation located on the westernmost part of the Usean continent. Erusea shares its border with San Salvacion, and most likely other nations as well. Its capital, Farbanti, is located on the coast of Usea's westernmost peninsula near the Spring Sea.

Formerly the Federal Republic of Erusea[2] or Erusean Republic (エルジア共和国),[3][4] the nation is known for its industrialism, militarism, and advancements in engineering and aeronautic technologies. It was severely affected by the impact of Ulysses 1994XF04 in 1999. By mid-2003, tensions between Erusea and the other Usean nations escalated into open war, in which Erusea was soundly defeated.

The nation reformed into a kingdom sometime afterward. Following the construction of the International Space Elevator in Axel Bay, Erusea occupied the space elevator and declared war on the Osean Federation.[5]

Erusea was the antagonist country in Ace Combat 04: Shattered Skies, and made a brief appearance in Arcade Mode in Ace Combat 5: The Unsung War. It will once again act as an antagonist in Ace Combat 7: Skies Unknown.


Pre-Ulysses (–1998)

See also: Usean Continental War

Along with most Usean countries, Erusea maintained heated tensions with its neighbors for a long period of time. However, due to the threat of Osean and Yuktobanian expansionism in the late 20th century, Erusea joined other Usean countries in forming the Usean Allied Forces.[6] They nonetheless continued to maintain hostile relations with the Federation of Central Usea (FCU), whose troops were deployed along the Amber-Ugellas border in a tense standoff with Erusean forces in the early 1990s.[7]

On April 29, 1996, the FCU formally announced the existence of the Ulysses 1994XF04 asteroid, simultaneously pulling out its forces from the Amber-Ugellas border.[7] While no evidence exists, it is believed that Erusea joined international discussions in combating the Ulysses asteroid, and contributed to the construction of Stonehenge.

In 1997, a group of southern Usean nations announced their intention to join the Osean Federation. Many northern nations, including Erusea, protested the act. Osea extended their support and prepared to sign the Spring Sea Treaty with the southern nations. On May 30, the day the treaty was to be signed, conservative extremists—including some members of Erusea's military, such as the Albireo Squadron[8]launched a coup d'etat and overwhelmed the Usean Allied Forces across the continent.[6]

Within a year, the rebels pushed the Allied Forces to the west and controlled most of Erusea's territory as well as that of every other country.[6] The rebels performed numerous operations within Erusean territory,[9] including taking over The Keep and reforming it into a frontline supply base.[10] In March 1998, the Usean Allied Forces hired Scarface Squadron to combat the rebels.[11] Over the next three months, Scarface pushed the front lines to the center of the Usean continent,[12] eventually restoring Erusea's control.

Post-Ulysses (1998–2003)

See also: Ulysses 1994XF04, Usean Refugee Dispute
Farbanti Crater High-Res

Ulysses meteorites began to impact the planet on July 8, 1999, and continued to do so in large quantity for the next two weeks, killing over 500,000 Useans and crippling the continent's infrastructure.[13] Despite Stonehenge's attempts to defend the continent, at least ten meteorites made impact within Erusea's borders.[14] Two of them made particularly significant craters: the Goldberg Crater in the Whiskey Corridor, and the Ryker Crater in Farbanti, the latter of which flooded the city's western municipal district. Despite the damage, Erusea refused to move its government headquarters or change Farbanti's status as the country's capital.[15]

In the aftermath of the Ulysses disaster, millions of civilians were displaced from their residences and became refugees. Many Usean countries expected Erusea, a large country, to admit the most refugees.[14] In April 2000, after accepting over 200,000 refugees, Erusea's Ministry of Foreign Affairs announced that they would impose restrictions on visa applications, preventing more refugees from entering the country. Despite Erusea's insistence that they could not support any more refugees, other Usean countries publicly condemned the move, boycotting Erusea's products. Many refugees suffered disease and crime at mismanaged refugee camps along Erusea's borders.[14]

The rising tensions from the refugee crisis culminated in Erusea's sudden invasion of San Salvacion and capture of Stonehenge in the summer of 2003.[16] The pilots and security personnel assigned to defend Stonehenge went missing, but Erusea claimed that Stonehenge's management staff was under their protection. The member nations in the Central Usea Treaty Organization heavily condemned Erusea's act, and FCU President Robert Sinclair created the Independent State Allied Forces in the event of war. President Sinclair deployed FCU troops to the outskirts of San Salvacion and ordered Erusea to withdraw within a month.[14]

Second Usean Continental War (2003–2005)

Main article: Second Usean Continental War

On September 14, 2003, the deadline that FCU President Sinclair gave Erusea to withdraw, ISAF attempted to destroy Stonehenge. However, Erusea utilized Stonehenge to great effect in destroying ISAF's aircraft, forcing ISAF to retreat to Los Canas.[16] ISAF attempted another strike operation to destroy Stonehenge, but Erusea deployed the elite Yellow Squadron, who shot down the entire ISAF strike team.[17] Erusea continued to win numerous victories over ISAF forces, pushing them off the continent onto North Point.[16] Around this time, Erusea was involved in trade deals with Yuktobania and the Republic of Anea, contributing to Erusea's military power.[18]

In the autumn of 2004, ISAF forces began to win multiple small victories over Erusean forces. Erusea initiated preparations to deploy the Aegir Fleet to North Point to end the war, but ISAF forces immobilized and destroyed the fleet in November 2004, providing an opening for ISAF to launch counteroffensive operations.[19]

Erusea began utilizing Stonehenge and Yellow Squadron against the ISAF forces as they penetrated the mainland and liberated Los Canas. In April 2004, ISAF's Mobius 1 destroyed Stonehenge, eliminating Erusea's air superiority over the Usean continent.[20] Over the next few months, ISAF launched a massive counteroffensive and pushed Erusea back to its own territory.

Following the liberation of San Salvacion, ISAF chased Erusea's retreating forces, defeating them in the Whiskey Corridor and making a push for Farbanti. On September 19, Mobius 1 assisted ISAF's ground forces in capturing Erusea's GHQ, and shot down the entirety of Yellow Squadron. Erusea's Supreme Commander was killed in the battle, and Erusea surrendered to ISAF that day.[21] A rebellious group of Erusean officers captured and activated the Megalith superweapon facility in retaliation, but Mobius 1 and other ISAF forces destroyed the facility.[22] Similar remnant Erusean forces continued fighting for at least a month.[23]

Post-war reconstruction (2005–2019)

Main article: Operation Katina

While ISAF attempted to implement a new autonomous government within Erusea, a rebellious group calling itself Free Erusea captured ISAF facilities in 2006 and began terrorist operations against the ISAF across the Usean continent, as far east as Newfield Island. On September 24, 2006, Mobius 1 was deployed to quell the rebellion.[18] In less than three months, Mobius 1 defeated Free Erusea, allowing ISAF to continue setting up Erusea's provisional government.[24]

Arkbird G7 Summit

On August 21, 2008, the G7 Summit took place aboard the Arkbird. Erusea's provisional government was in attendance on Osea's invitation, in hopes to solve the outstanding issues regarding Erusea's military and the Usean refugees.[25]

At some point, Erusea reformed into a kingdom. Princess Rosa Cossette D'Elise became an outspoken representative for the country.[26]

Osea-Erusea Conflict (2019)

Main article: Osea-Erusea Conflict

In 2019, Erusea captured the International Space Elevator and its Arsenal Birds, viewing its presence in their territory as a flagrant violation of their sovereignty, and declared war on the Osean Federation.[5]



Outside of wartime holdings, Erusea possesses a large majority of Usea's northwestern territory. Most of Erusea's north and central areas are covered by the Lambert and Amber Mountains, respectively. Situated between the two mountain ranges is the Whiskey Corridor, a strip of desert land that used to have the Irsali River flowing through it. Goldberg Crater, the largest of the Ulysses craters, is located next to the dried-up river.[15]

Erusea's capital city, Farbanti, is partially constructed by man-made landfills.[21] Its westernmost district was flooded by the Ulysses meteorite that created the Ryker Crater.[15] Erusea's territory also includes Cape Rainy to the north, the strategic port city Anchorhead to the south, and the Twinkle Islands south of Farbanti.



Erusea was structured as a federal republic prior to their defeat in the Second Usean Continental War. It was led by a Supreme Commander from the military,[21] which held the most sway in government proceedings, but Erusea still maintained a parliament for legislative duties.[27] The political environment was described as fascist by the Side Story Narrator and ISAF forces, although their statements were biased in nature.[28]

In the 2010s, Erusea reformed into a kingdom.[26] It is therefore assumed that Erusea's royal family, including Princess D'Elise, hold political power to a degree. More details are likely to be revealed closer to the release of Ace Combat 7: Skies Unknown.


Erusea boasted a powerful military in the 1990s and early 2000s, described as equivalent to the military power of all of ISAF's member states combined.[14] Its air force played host to many ace pilots, including Edgar Grint[8] and Yellow 13.[29] The Erusean navy was best represented by the Aegir Fleet, repeatedly described as the "invincible fleet" prior to its sinking.[19] They continued to maintain some naval power afterward,[21] but its strength post-2005 is unknown.

The height of Erusea's military power came with their capture of Stonehenge in 2003. While in control of the facility, Erusea shot down innumerable ISAF aircraft, preventing ISAF from providing air support to its ground troops.[30] Stonehenge's destruction proved to be a crippling blow to the Erusean military.[20]

Erusea's Air and Space Administration (EASA) is recognized as a major scientific element of Erusea's military. The EASA attempted to manufacture the X-02 Wyvern before the conclusion of the Second Usean Continental War, but political disagreements and wartime supply exhaustion prevented its completion before the war's close.[27] In later years, the EASA would continue to be a major part of Erusean military development, performing research into UAV technology.

During the 2019 conflict with Osea, Erusea captured the Arsenal Birds and their MQ-101 UAVs, giving Erusea power across a large portion of the Usean continent similar to Stonehenge.



  • The Erusean roundel appears as a sponsor logo in the Ridge Racer series.
  • In Ace Combat 04, people or organizations belonging to Erusea were referred to as "Erusian" in written text. As of the Ace Combat 7 trailers and demos released in 2017, this has apparently been changed to "Erusean", however, the game has yet to come out to fully confirm the change.


  1. PlayStation Experience 2016 Trailer.
  2. Name and description of "Federal Republic of Erusea" Ace Combat Infinity emblem.
  3. Aces At War: A History, page 119.
  4. Briefing, Final Countdown, Ace Combat: Assault Horizon Legacy.
  5. 5.0 5.1 File:Ace Combat 7 Skies Unknown - E3 2017 Demo Gameplay.
  6. 6.0 6.1 6.2 Intro cutscene, Ace Combat: Assault Horizon Legacy.
  7. 7.0 7.1 Usea Today: Asteroid on Collision Course With Earth! Retrieved on June 18, 2017.
  8. 8.0 8.1 Final Countdown, Ace Combat: Assault Horizon Legacy.
  9. Easy Money, Ace Combat: Assault Horizon Legacy.
  10. Tin Castle, Ace Combat: Assault Horizon Legacy.
  11. Gambit, Ace Combat: Assault Horizon Legacy.
  12. Cuckoo's Nest, Ace Combat: Assault Horizon Legacy.
  13. Ace Combat 04: Shattered Skies - Perfect Guide, page 007.
  14. 14.0 14.1 14.2 14.3 14.4 GAZE: War? Retrieved on June 18, 2017.
  15. 15.0 15.1 15.2 Color of the World: Craters. Retrieved on June 18, 2017.
  16. 16.0 16.1 16.2 Aces At War: A History, page 136.
  17. The World of AC04. Retrieved on June 18, 2017.
  18. 18.0 18.1 ISAF Bulletin. Retrieved on June 18, 2017.
  19. 19.0 19.1 Invincible Fleet, Ace Combat 04: Shattered Skies.
  20. 20.0 20.1 Stonehenge Offensive, Ace Combat 04: Shattered Skies.
  21. 21.0 21.1 21.2 21.3 Siege of Farbanti, Ace Combat 04: Shattered Skies.
  22. Megalith, Ace Combat 04: Shattered Skies.
  23. "A Brother in Arms / 1", Ace Combat Zero: The Belkan War.
  24. Arcade Mode, Ace Combat 5: The Unsung War.
  25. GAZE: Arkbird Declaration Summit 2008. Retrieved on June 18, 2017.
  26. 26.0 26.1 File:Ace Combat 7 Skies Unknown - E3 2017 Trailer.
  27. 27.0 27.1 Erusea's Last Hope. Retrieved on June 18, 2017.
  28. Emancipation, Ace Combat 04: Shattered Skies.
  29. Interlude 04, Ace Combat 04: Shattered Skies.
  30. Introduction cutscene prior to Sitting Duck, Ace Combat 04: Shattered Skies.

Start a Discussion Discussions about Erusea