Actually, in Starlancer, the Coalition had full control over all the inner planets, including Earth. The Alliance nations on earth were under Coalition occupation. The Alliance nations were essentially fighting in exile. Imagine if, say, the US were conquered by someone today, and the military were trying to retake it from overseas bases. That's the situation the Alliance faced in Starlancer.
Now, even if all of Earth were under occupation, that doesn't mean that all of earth was willingly in the Coalition. We still need to figure out which nations were originally Alliance and which ones were originally Coalition before the war broke out.
![[Image: pyBjInU.png]](https://i.imgur.com/pyBjInU.png)