Geography¶
The Confederated States of Ardun Territories occupies the central-northern third of Sierra, from the Rakutanian frontier in the north to the Livonian frontier in the south, with the Ardun Plateau forming the elevated continental core and the Dilvaan River Valley cutting through it toward the Shalmeen coast. The confederation is among the larger Sierran states by territory and is moderately to densely populated along the Dilvaan Valley and the coastal provinces, sparsely populated through the Karesh Desert interior.
The Ardun Plateau¶
The dominant geographic feature of the country and the source of the confederation's name. The Ardun Plateau is a massive elevated tableland — semi-arid, ringed by mountains, and crossed by ancient Messoman trade roads that held the old empire together. The plateau:
- Hosts the capital at Mehrvaan and most of the confederation's other major inland cities
- Supports the confederation's principal livestock industries and steppe agriculture
- Holds substantial oil and natural gas reserves in its subterranean basins — the plateau is the confederation's principal hydrocarbon-producing zone
- Provides strategic depth against any northern or southern aggressor — the plateau's ring-of-mountains rim is the natural confederal defensive perimeter
- Carries the historical-imperial weight of the Messoman cultural-civic tradition; the great cities and seminaries of the old empire are here
The plateau's climate is harsh — long, cold winters; hot, dry summers; persistent wind; low and unreliable precipitation. Plateau settlement clusters around water sources; outside those clusters, the plateau is more landscape than land.
The Karesh Desert¶
The Karesh Desert occupies the southern interior, a brutal and vast arid zone separating the Ardun Plateau from the Shalmeen coast. The Karesh:
- Is not empty — it hides oasis city-states, buried ruins of pre-empire civilisations, and caravan routes that smugglers still use today
- Hosts the desert-tribal communities that were never fully absorbed by the Messoman Empire and remain politically thorny for the confederation
- Provides defensive depth against any southern incursion — any Livonian advance into the confederal core must either cross the Karesh or take the long way around
- Contains scattered mining and resource-extraction sites — primarily phosphates, salt, and some rare-earth deposits
- Is administered through a dedicated Confederal Desert Provinces Directorate with substantial AFCS Desert Mobile Force presence
The Karesh is culturally distinct from the plateau and the valley. Desert-tribal Ardunese is a distinct dialect; desert religious observance retains pre-Tawhidist folk-Islamic elements that the confederal religious establishment regards with measured tolerance and the desert tribes regard as authentic continuity.
The Dilvaan River Valley¶
The Dilvaan River Valley is the agricultural and demographic spine of the confederation, a long fertile valley cutting through the plateau toward the Shalmeen Sea. The Dilvaan:
- Is the confederation's principal agricultural zone — wheat, barley, rice (in the lower-valley irrigated districts), olives, citrus, dates, and pastoral livestock
- Carries the densest population in the confederation — the major urban centres of the valley together house an estimated 18–22 million people, the bulk of CSAT's urbanised population
- Has been continuously cultivated for thousands of years — the valley is to Sierra what the Tigris-Euphrates is to West Asia in scale and historical weight
- Concentrates the confederation's cultural and religious heritage — the major Tawhidist religious institutions, the great medieval Messoman cities, the literary and architectural canon
- Hosts the principal steel, metal works, and heavy industrial centres of the confederation
The Dilvaan is culturally and emotionally central to Ardunite civic identity in a way that few rivers are to other peer states. Ardunese songs, poems, and idioms reference the valley constantly; the valley is the confederation's geographic and symbolic spine.
The Shalmeen Sea Coast¶
The Shalmeen Sea Coast is the confederation's southern maritime frontier — a warm, enclosed sea (geographically an arm of the broader Volnian Sea) giving CSAT access to the southern Sierran maritime system. The coast:
- Mixes prosperous port cities with rocky, defensible coves
- Hosts the Free Economic Zone (FEZ) ports that anchor the confederation's foreign-currency economy
- Projects Confederal Navy power from the principal naval bases at [TBD — major port] and [TBD — secondary port]
- Carries the historical memory of Messoman maritime power — the old empire projected naval force from these same harbours
- Is subject to continuous rivalry between coastal member-states over port authority and FEZ revenue distribution
The Shalmeen is economically central to the modern confederation. Loss of access to the Shalmeen ports would be catastrophic; defending the Shalmeen coast and the approaches to it is a principal confederal naval mission.
The Aegiran Sea coast¶
The confederation also fronts the Aegiran Sea to the west, with a smaller but strategically critical western coastline. The Aegiran coast hosts the western FEZ ports and the Confederal Navy's western fleet. The eastern Aegiran islands — Lerion, Mytilene, and Selinon, formerly Aegiran territory — have been under CSAT occupation since the July–August 2026 amphibious operations and constitute the confederation's first overseas territorial holdings since the Messoman Empire.
The Aegiran coast is structurally more exposed than the Shalmeen — the central Aegiran Sea hosts the active maritime war, and Aegiran and broader WDP naval and air forces operate against the confederal coast continuously.
Borders¶
| Border | Length | Status | Notes |
|---|---|---|---|
| DPR Rakutania (north) | substantial | Ally | The confederation's principal alliance border. Free movement of military formations under ESA framework. The two states' principal joint operational planning runs across this frontier. |
| Republic of Livonia (south) | ~480 km | Rival | The confederation's principal land threat axis. Heavily fortified on both sides; the Northern Highlands channel any incursion through a small number of corridors. Site of the 1923 Messoman invasion of Livonia. |
| Republic of Gorlund (north-west) | minor | Rival; active belligerent | A small frontier crossing the western reaches of the Ardun Plateau. The Confederal Army maintains a single mechanised brigade on this frontier as a deterrent. |
| Kingdom of Choktovakia (east) | minor | Neutral (SNAM) | Most of the eastern frontier is administered through the Black Mountain Protectorate (a CSAT protectorate; see below). The direct Choktovakian frontier is short and quiet. |
| Black Mountain Protectorate (east) | substantial | CSAT protectorate | A protected state under the confederal security umbrella; covers most of what would otherwise be the eastern Choktovakian frontier. |
| Shalmeen Sea / Volnian Sea (south) | extensive | n/a | The principal maritime coast; FEZ port system; principal Confederal Navy projection axis. |
| Aegiran Sea (west) | extensive | War theatre | Active maritime theatre of the Continuation War; eastern Aegiran islands occupied by CSAT since August 2026. |
Climate¶
The confederation's climate is continental and varied:
- Arid desert through the Karesh interior — extreme summer heat, cold winter nights, almost no precipitation, episodic dust storms
- Continental steppe across the Ardun Plateau — cold winters, hot summers, low and unreliable precipitation; agriculture intensifies only where Dilvaan-tributary irrigation extends
- Mediterranean-equivalent warm coast along the Shalmeen and Aegiran coasts — mild wet winters, hot dry summers; the most agriculturally productive non-irrigated zone
- Sub-tropical fertile valley along the lower Dilvaan — extended growing season, intensive irrigation; the confederation's agricultural heartland
The climate variation supports diverse agriculture — wheat and barley on the plateau, livestock through the steppe and desert margins, irrigated rice and citrus in the lower Dilvaan, olives and grapes along the Shalmeen coast. The confederation is broadly self-sufficient in food in normal years.
Natural resources¶
| Resource | Status | Notes |
|---|---|---|
| Crude oil | Substantial | Plateau and offshore Shalmeen fields; both domestic consumption and significant export through FEZ ports |
| Natural gas | Substantial | Co-located with oil; principally domestic consumption |
| Iron ore and steel inputs | Substantial | Dilvaan-tributary mining; supports the metal works industry |
| Phosphates and fertiliser minerals | Substantial | Karesh Desert deposits; major export commodity |
| Timber | Adequate | Northern plateau and Choktovakian frontier forests; supports domestic construction and limited export |
| Agriculture | Abundant | Diverse and substantial; net exporter in normal years |
| Rubber | None | Critical strategic dependency; imported from Sur'Bari and Brassican producers — the confederation's single largest non-substitutable import |
The confederation's resource base is broad and substantial. The rubber dependency is the principal strategic vulnerability; oil exports through FEZ ports are the principal foreign-currency earner; phosphates and military technology round out the export mix.