At first, they caught us by surprise since actual military warfare was obsolete to our people, having been a peaceful colony for so many centuries. With overwhelming numbers, far outstripping those of the Deltan population, the Yakma launched a major offensive and demolished every settlement except for Solmuta. Several million souls threw themselves at our settlements, hungry for our resources and technology. But this turn of events didn’t last long, as we had the more effective military organization and knowledge of strategy, not to mention we were many centuries ahead in social structure. Even our technology was still far more advanced, though the Yakma people had made great strides on that front since our coming.
It didn't take long for the Deltan military to assemble itself for a full retaliation. A few years of protecting Solmuta with outdated military equipment gave them just enough time to devote all of their resources to ensuring the successful defense of Seed's capitol. It started with building a massive dome around the crater, creating a fortress out of our first settlement. Then, as the military structure and administration was polished, we drafted every able-bodied young man into what we ended up calling the DARSOL, or the Defense Armada of Solmuta. It was separated into three small branches: the Raptor, the BallistiCorps, and Dragoon Special Warfare Division.
The Resolution
The fighting went on for months. We maintained the defense of Solmuta and kept a large majority of the population intact. The Yakma did not fare well. They surrendered in the end and we brought their leaders in to negotiate peace. When the talks began, our leaders found that the Yakma had crash landed here centuries before and have been unable to leave. They lost most of their resources and people, and with a single vessel containing all of their smaller air and space craft, they lost all modes of transportation. Their mission was not complete when they became stranded and their own people never knew what happened to them. Until now, that is, since their earliest records indicate that they are originally Deltans.
Once peace had been negotiated and brotherhood had been established, we offered them three of our haulers as a gesture of kindness and hope, giving whoever among them that wanted to take to the stars once again a chance to rebuild and re-establish contact with the descendants of their first generation. Most of them left, and the ones who stayed did so among our people.