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Ustio, officially the Republic of Ustio, is a small landlocked nation located on the Osean continent. It is bordered by Belka to the north; Recta and Ratio to the east; Sapin to the south; and Osea to the west. Ustio's capital, Directus, is situated near the center of the nation.

Formerly Belkan territory, Ustio seceded from the Belkan Federation as a result of the Belkan economic crisis, declaring its independence on May 12, 1988. In 1995, Belka invaded Ustio as part of the Belkan War in an attempt to acquire the newly discovered resource deposits in northwest Ustio, conquering most of the country before being pushed back by the Osean-led Allied Forces.

Ustio is largely agrarian, featuring rolling patchworks of farmland and remote towns, such as Solis Ortus, situated in the rugged mountain ranges. Ustio's northern regions are known to be rich in natural resources. The Ustian military is known to supplement its regular forces with mercenaries, using them to great effect during the Belkan War.



An aerial view of Ustio's capital, Directus

Prior to its independence, Ustio was a territory of the Belkan Federation. However, ethnic Ustians regarded Belkan rule unfavorably and sought independence from Belkan rule and influence.[1]

Secession and independence (1988)

In the wake of its heightened military expansion during the Cold War, Belka descended into an economic recession destabilizing the national economy. Belka's internal Federal Law Review ultimately resulted in the secession of Gebet, Recta, and Ustio from Belka. On May 12, 1988, the Republic of Ustio officially declared independence and established its capital in the city of Directus.[2]

Post-independence, Ustio's economy was largely based on skilled craftsmanship and agriculture.[3] Although Directus experienced some development, the country as a whole remained stagnant. This was echoed in the nation's modest military force, which remained relatively insignificant by the mid-1990s. However, in early 1995, vast deposits of valuable natural resources were discovered along Ustio's northwest border with Belka.[2]

Belkan War (1995)

Belkan invasion

On March 25, 1995, the Belkan Federation invaded Ustio in an effort to acquire the newly discovered resource deposits in the country's northwest, also invading Osea and Sapin. The small Ustian military was overwhelmed by Belka's offensive. By March 30, the Belkan Army occupied nearly all of Ustio, including the capital city Directus, leaving only the Tyrann Mountains and its surrounding area free from Belkan control.[2] [4]

As the Belkan advance persisted, Ustio resorted to soliciting and employing mercenaries to replenish its military personnel.[5] By April 1, Ustio joined the Allied Forces alongside Osea, Yuktobania, and Sapin, and began executing counter-offensive operations.[4]

On April 2, the Belkan Air Force attempted to bomb Valais Air Base in the Tyrann Mountains and eliminate the remainder of Ustio's combat power. However, the Ustio Air Force successfully defended the air base, stopping the Belkan offensive.[5]

Liberation of Ustio

Following the defense of Valais Air Base, the Belkan offense was stymied and the Allied Forces began to prepare for the liberation of occupied Ustio, Sapin, and Osea. Although numerically small, the Ustio Air Force played a key role in allied operations, leading Operation Roselein to reopen the Route 171 supply route[6] and Operation Choker One over Area B7R to distract from an allied naval offensive.[7] Ustian fighter units also supported the 3rd Osean Naval Fleet's movement through the Futuro Canal as part of Offensive Campaign No. 4101. These naval forces were used to support the liberation of Osean and Ustian territory.[8]

On May 12, 1995, the seventh anniversary of Ustio's independence from Belka, the Allied Forces launched Operation Varsity to liberate Solis Ortus in southern Ustio.[9] The next day, on May 13, the Allied Forces liberated Directus during Operation Constantine.[1] Following the liberation of Directus, the Belkan forces in Ustio crumbled and the Allied Forces began advancing into Belka.[10]

End of the war

Following Ustio's liberation, the Allied Forces continued advancing into Belka. Ustian air units participated in Operation Hell Bound against Belka's Hydrian Line at Glatisant,[11] an airborne assault on the Schayne Plains,[12] and an airstrike on Belka's Excalibur anti-ballistic missile and anti-aircraft weapon.[13] Ustian air units also provided support to the Osean-led strategic bombing of Hoffnung, much to the distaste of some Ustian pilots.[14]

On June 6, as the Allied Forces continued their advance, Allied intelligence indicated that a Belkan bomber squadron had taken off to execute a nuclear strike against Ustio. While the Ustio Air Force managed to intercept the bomber squadron over the Waldreich Mountains in Operation Ravage, Belka dropped seven nuclear weapons along the border of North Belka and South Belka, killing 12,000 people; this resulted in a ceasefire between Belka and the Allied forces. This caused Ustian pilots Larry Foulke and Blair Winthrop to desert the military.[15]

A World With No Boundaries crisis

While the Belkan government prepared to negotiate its surrender to the Allied Forces, A World With No Boundaries, a radical terrorist group consisting of renegade Belkan, Osean, Sapinish, Yuktobanian, and Ustian military personnel, sought to continue the war to eliminate all national borders. On 13 June, Ustio Air Force units covertly executed Operation Stone Age at Mount Schirm against rebel Belkan forces aligned with A World With No Boundaries.[16] Belka officially surrendered to the Allied Forces on June 20, 1995. Operation Broom, a covert Allied operation, was also executed to eliminate A World With No Boundaries-aligned Belkan rebels at Anfang.[17]

On December 25, 1995, A World With No Boundaries used the XB-0 Hresvelgr to bomb the Osean city of Lumen and Ustio's Valais Air Base. In response, Ustio launched Operation Valkyrie to destroy the XB-0 over the Waldreich Mountains.[18] Following the engagement, Ustian intelligence unveiled that A World With No Boundaries intended to launch the V2 nuclear weapon. Ustio Air Force units were dispatched to Area B7R where Galm Team eliminated a significant portion of A World With No Boundaries leadership.[19] At Avalon Dam, Allied Forces air units executed Operation Point Blank on December 31, eliminating A World With No Boundaries and the V2.[20]

Postwar (1995–present)

Ustian aircraft at Redmill alongside those of other nations

In the years following the Belkan War, the Ustian people remain outspokenly proud of their independence; the bell tower in Directus chimes every day at sunset to commemorate the city's liberation during the war.[21]

On June 30, 2020, Ustio attended a ceremony commemorating the 25th anniversary of the end of the Belkan War after being invited by the Osean Federation. The Ustio Air Force sent replica Galm Team aircraft and five Mirage 2000-5s to Redmill in Osea to be showcased at the event alongside the aircraft of other participating nations.[22]


Ustio is a landlocked nation with varying topography. Mountainous regions along its eastern and southern borders are difficult to traverse, while the nation's central regions feature rolling pastures and farmland, dotted with hills and undeveloped woodlands. Ustio's climate appears to be temperate, apart from the arid desert regions to the north towards the Waldreich Mountains. The nation's capital, Directus, is situated along the Crescere River[23] in southeastern Ustio.



Apart from being a republic, little is known about the government Ustio established after gaining independence in 1988. However, it is likely that (as a republic) the Ustian citizenry elect their representatives in the federal government. When the Belkan invasion force captured Directus in late March 1995, the Ustian government was forced into exile until the capital's liberation on May 13. It is presumed that Ustio has maintained good relations with its former allies, Osea and Sapin, in the years after the Belkan War.


As a young nation, Ustio's military is relatively weak in terms of numbers and outfitting. The nation's military consists of the Ustian Army and Ustio Air Force, the latter having been known to recruit mercenaries as a means to bolster its numbers.[2] As a landlocked nation, it is unlikely that Ustio maintains any naval forces.


Ustio's national economy is largely based on agricultural production and skilled craftsmanship.[3] There is little evidence of any manufacturing or industrial production within the country. Even after vast deposits of natural resources were discovered in Ustio in the mid-1990s,[2] it is possible that Ustio lacked the means to extract and process them.