- World
- Manaan
- Resource
- Kolto
- Defenders
- Selkath / Republic
- Aggressor
- Sith Empire
In 3625 BBY, the Sith Empire invaded Manaan to seize the planet's vast supply of kolto. For millennia, the Selkath had lived with the geopolitical burden of controlling a healing substance needed by governments, armies, corporations, and civilians far beyond their ocean world. The Third Galactic War made that dependency impossible to insulate from military power.
Kolto turns medicine into strategic geography
Kolto was valuable because it could treat severe injuries across many species. That meant Manaan's biology and environment underwrote medical systems far beyond Selkath territory.
Once two interstellar powers returned to open war, access to healing material affected how long armies could fight, how quickly casualties could return to service, and how much suffering civilian populations could absorb.
Selkath neutrality cannot survive unlimited outside demand
Manaan had long tried to protect sovereignty through control of kolto exports and carefully balanced relations with outside powers. But neutrality works only while rivals accept that the cost of violating it is too high.
The Sith invasion demonstrates a structural weakness of resource neutrality: when a commodity becomes strategically essential, great powers may decide that direct control is preferable to negotiation.
The war moves into Manaan's submerged infrastructure
Manaan's civilization depended on underwater cities, processing sites, transportation, and environmental systems. Fighting around those spaces made military action inseparable from civilian infrastructure.
On an ocean planet, damage to one installation can have consequences far beyond a battlefield because pressure systems, habitats, transport links, and resource extraction are interconnected.
The invasion also intensifies Selkath internal politics
Not all Selkath interpreted the war the same way. Isolationist currents such as the Syphus Collective rejected dependence on the wider galactic system and blamed external powers for turning Manaan into a battlefield.
The conflict therefore was not simply Selkath versus Sith. It also reopened arguments about whether Manaan's prosperity and vulnerability came from the same relationship with galactic trade.
3625 BBY · Legends · Research context
People, political institutions and historical evidence
Manaan kolto invasion: what the story records
Manaan's kolto is a critical medical resource, so the Sith invasion threatens the conditions of treatment across the wider war. The expansion gives Republic and Imperial players different perspectives on the struggle for the world's supply and underwater facilities. The attack should be understood as conflict over public survival and logistics as well as military victory.
Anthropological analysis and limits
Control over medicine is a form of strategic power. A supply chain connects harvesting sites, transport systems, hospitals and wounded people who are not shown in the battlefield cutscenes. The existence of these dependencies does not justify inventing exact casualty totals, production figures or medical policy decisions without a cited source.
Verify the historical claim
The named SWTOR story or mission supports the event; the precise BBY placement can be an editorial Legends reconstruction rather than a date quoted by the publisher. In-game faction choices and unspecified casualties must not be converted into a single invented account.
Primary publisher source: SWTOR story and release record →

Event sequence
The Empire moves to seize kolto rather than merely blockade it.
Underwater facilities and surface positions are militarized.
Republic and local defenders contest Imperial control.
Isolationist and interventionist responses compete.
Manaan remains strategically important after the opening invasion.
Explore this entry
Why is kolto worth invading a whole planet?
Medical logistics can determine military endurance. A faction controlling a scarce, widely useful treatment can heal its own forces while limiting an enemy's access.
Didn't bacta replace kolto thousands of years earlier?
Bacta became the dominant galactic healing substance, but kolto remained valuable and Manaan retained specialized medical importance. SWTOR explicitly makes it strategically vital again in this war.
What makes this anthropologically different from a normal resource war?
The resource is medicine. Control therefore affects not only wealth and weapons but who receives treatment, whose bodies are repaired, and whether medical access becomes conditional on political power.
Anthropological assessment
Manaan is a case of resource sovereignty under great-power pressure. A society can formally own a resource while other societies' dependence on it continually threatens that ownership.
Kolto also collapses the boundary between humanitarian and military infrastructure. The same substance that saves civilians can extend armies' ability to fight, making medicine itself part of wartime political economy.
3625 BBY · Old Republic · Legends
Why this event matters: Kolto and the invasion of Manaan
A medical resource becomes a strategic objective because control of treatment affects military and civilian survival.
Anthropological interpretation: The event can be examined through institutions, social loyalties and the control of resources or information. That analytical perspective should not be confused with additional source-documented scenes.
Evidence check: documented event or interpretation?
The event and its broad place in the chronology are source-based. The social implications above are interpretation; exact private motives, undocumented dialogue and unreported casualties are not asserted.
Sources and further reading
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