During this process, their numbers would slowly spiral upwards. Many Green Skin Orcs would die in internal conflicts, but despite fluctuations, the overall population continued to grow. At the same time, as more battles were fought and more Orcs were present, so their so-called 'Waaagh' Force Field became increasingly potent.
This force field was intricately related to Spiritual Energy yet not quite the same; akin to some kind of 'idealist technology,' it would make their tribal strength grow stronger, and their technology would inexplicably advance. Various weapons and equipment 'devised' by the Orcs themselves and usable only by them would one day enable them to embark on a journey to the Star Sea.
Of course, without external interference, this process would be incredibly lengthy.