Trying the same thing over and over again is the definition of insanity. The mass attack finds itself in the exact same issue, which I'd think you'd even know, if you've heard anything about World War 1, which is that mass assault doesn't work in attrition warfare. The Aldranian soldiers, once again, are limited to occupying just major roads in Laurentia at the cost of countless, since other places see fierce guerilla resistance and supply problems, since the boreal forests are dense, which limits conventional forces to small chokepoints, and precambrian rock, which is lackluster in terms of infrastructure, meaning that supplying armies there is painful, especially since entrenching in such rough soil takes a long time time and is more expensive, which means that they are constantly being choked out by ambushes to their supply lines. The Nicator is additionally useless, for such large fortified lines are long-term investments, which Aldrania cannot afford due to it's large army's maintenance choking the budget, and guerilla forces not being bound to conventional strategy. In addition, Aldranian forces in Elevia do start an advance, but they are caught by suprise to see that guerrilla armies don't just have front-lines like a conventional force, and thus it is nigh-impossible to flank a guerilla army on the grand scale for any length that is considered strategically or tactically beneficial. Additionally, another group has risen up; the ELN, which is the National Liberation Army. It is comprised of ethnic Laurentians tired of being ruled by a different people, and Aldranians who are tired of their loved ones dying in a meatgrinder of a war over territory that isn't really Aldranian. Additionally, CAS isn't great against a guerilla army; guerillas blend in with both civilians (in which attacking them would be a massive blunder) and environment, they avoid concentrated forces, and hit-and-run tactics means that many places where guerillas once were are no longer bearing guerillas, and due to a lack of logistics-heavy vehicles, CAS doesn't have fixed logistics targets to hit, and typically makes it worse, because you'd often just be bombing innocent people, which will just bring more people on the insurgency's side.